A replaceable filter element mask and its matrix and filter element

Abstract

The present invention discloses a replaceable filter cartridge mask and its base and filter cartridge. The base comprises: a base having a hollow cavity capable of accommodating the mouth and nose area of ​​the face, a first filter cartridge pasting portion being arranged on one side thereof and a face body mounting portion being arranged on the other side thereof; a flexible face body having a face side capable of being fitted with the mouth and nose area of ​​the face, which is arranged at the face body mounting portion of the base through a non-face side. The replaceable filter cartridge is used in conjunction with the base of the replaceable filter cartridge mask. The replaceable filter cartridge is composed of a first filter cartridge and a second filter cartridge. The first filter cartridge is detachably arranged on the first filter cartridge pasting portion of the base, and the second filter cartridge is detachably arranged on the face side of the flexible face body. The mask comprises: the base of the replaceable filter cartridge; the replaceable filter cartridge is composed of a first filter cartridge and a second filter cartridge. The first filter cartridge is detachably arranged on the first filter cartridge pasting portion of the base, and the second filter cartridge is detachably arranged on the face side of the flexible face body. The present invention has higher wearing comfort and good protective sealing performance.

Description

Technical Field

[0001] The invention relates to the technical field of masks, especially medical masks, and more specifically to a comfortable and lightweight mask with replaceable filter cartridges and a matrix and a filter cartridge thereof. Background Art

[0002] Masks generally refer to devices worn on the mouth and nose to filter the air entering and exiting the nose and mouth to prevent harmful gases, odors, and droplets from entering and exiting the wearer's mouth and nose. Due to the current prevalence of the new coronavirus, masks have become an indispensable item in everyone's life. Masks cut off the spread of the virus by establishing a physical barrier, and are an important line of defense to protect people from respiratory infections such as the new coronavirus.

[0003] Currently, commonly used masks mainly include disposable medical masks, medical surgical masks, medical protective masks, particulate protection masks and protective masks, etc. Filter elements are generally installed in masks. The filter elements are mainly used to filter out bacteria and dirt in the air. The filter elements in existing masks are directly replaced after absorbing more bacteria and dirt. The filter elements in the masks are not convenient to replace, which reduces the practicality of the masks.

[0004] For masks with replaceable filters, the filter fixing methods used, such as fixed slots, covers, and ventilation valves, cannot ensure sealing at the contact point between the mouth and nose and the mask and the overall comfort is poor. On the other hand, the high processing cost of the mask leads to its high price, which limits the application of masks with replaceable filters and is not conducive to resource conservation and environmental protection. Summary of the invention

[0005] In view of the problems existing in the replaceable filter cartridge masks in the prior art, the present invention provides a replaceable filter cartridge mask with higher wearing comfort, lower processing cost and good protective sealing, which is conducive to the promotion and use of replaceable filter cartridge masks.

[0006] To this end, one aspect of the present invention provides a substrate for a replaceable filter mask, the substrate comprising:

[0007] The base has a hollow cavity capable of accommodating the facial mouth and nose area, and a first filter element pasting portion is disposed on one side thereof and a face body mounting portion is disposed on the other side thereof;

[0008] The flexible face-fitting body has a face-fitting side that can fit with the mouth and nose area of ​​the face, and is arranged at the face-fitting body mounting portion of the base through a non-face-fitting side.

[0009] Furthermore, the base has a hard body surrounding the hollow cavity, and the hard body has a uniform or customized size, material, color and / or shape.

[0010] Furthermore, the hard body is made of plastic, metal, wood, bamboo, ceramic, paper shell, leather or artificial leather, and the flexible veneer is made of silicone, soft PVC or thermoplastic elastomer TPE / TPR.

[0011] Furthermore, at least one one-way breathing valve is provided on the side of the base.

[0012] Furthermore, the first filter element sticking portion is integrally or detachably arranged on one side edge of the base, and the first filter element sticking portion is used to fix the first filter element.

[0013] Furthermore, the veneer mounting portion is integrally or detachably arranged on the other side edge of the base, the veneer mounting portion is used to fix the flexible veneer, and the flexible veneer is detachably or non-detachably connected to the veneer mounting portion.

[0014] Furthermore, when the flexible veneer is detachably connected to the veneer mounting portion, the veneer mounting portion is provided with a first buckle portion, and the first buckle portion cooperates with a second buckle portion provided on the edge of the non-veneer side of the flexible veneer to achieve fixation.

[0015] Further, the first buckle portion is a buckle groove or a buckle edge, and the second buckle portion is a buckle edge or a buckle groove that cooperates with the first buckle portion, wherein the buckle edges or the buckle grooves are arranged continuously or at intervals.

[0016] Furthermore, the facing side of the flexible facing body serves as a second filter element pasting portion and is used to fix the second filter element, and the first filter element pasting portion has a platform portion that matches the edge of the first filter element.

[0017] Furthermore, the base also includes a strap that can be hung on the ear or head, and the base is also provided with a strap fixing part for installing the strap, and the strap is detachably connected to the strap fixing part. There are two straps and the length of the straps is adjustable or not.

[0018] Another aspect of the present invention provides a replaceable filter element, which is used in conjunction with the base of the above-mentioned replaceable filter element mask. The replaceable filter element consists of a first filter element and a second filter element. The first filter element is detachably arranged on the first filter element pasting portion of the base, and the second filter element is detachably arranged on the veneer side of the flexible veneer body.

[0019] Furthermore, the replaceable filter element comprises a filter element body, an adhesive layer and a release paper, wherein the adhesive layer is formed at a predetermined position on the inner side of the filter element body, and the release paper is removably stacked on the adhesive layer.

[0020] Furthermore, the filter element body comprises an outer non-woven fabric layer, a meltblown layer and an inner non-woven fabric layer, and the outer non-woven fabric layer, the meltblown layer and the inner non-woven fabric layer are stacked in sequence from the outside to the inside.

[0021] Furthermore, the filter element body also includes a functional layer arranged between the outer non-woven fabric layer and the inner non-woven fabric layer, and a cooling factor or a heat-generating factor is added to the functional layer.

[0022] Further, the first filter element has a shape and a size capable of covering the hollow cavity of the base, and the second filter element has a shape and a size capable of covering the facing side of the flexible facing body.

[0023] Another aspect of the present invention provides a mask with a replaceable filter cartridge, the mask comprising:

[0024] The base of the above replaceable filter element;

[0025] The replaceable filter element is composed of a first filter element and a second filter element. The first filter element is detachably arranged on the first filter element pasting portion of the base, and the second filter element is detachably arranged on the facing side of the flexible facing body.

[0026] Furthermore, the replaceable filter element comprises a filter element body, an adhesive layer and a release paper, wherein the adhesive layer is formed at a predetermined position on the inner side of the filter element body, and the release paper is removably stacked on the adhesive layer.

[0027] Furthermore, the filter element body comprises an outer non-woven fabric layer, a meltblown layer and an inner non-woven fabric layer, and the outer non-woven fabric layer, the meltblown layer and the inner non-woven fabric layer are stacked in sequence from the outside to the inside.

[0028] Furthermore, the filter element body also includes a functional layer arranged between the outer non-woven fabric layer and the inner non-woven fabric layer, and a cooling factor or a heat-generating factor is added to the functional layer.

[0029] Further, the first filter element has a shape and a size capable of covering the hollow cavity of the base, and the second filter element has a shape and a size capable of covering the facing side of the flexible facing body.

[0030] Furthermore, the mask also includes a mask storage box capable of disinfecting the substrate and a filter element storage box capable of storing the replaceable filter elements in batches.

[0031] The replaceable filter element mask and its base and filter element of the present invention adopt a pasting method to set the replaceable filter element, which effectively reduces the manufacturing cost of the base, and can be conveniently used through repeated use of the base and simple replacement of the replaceable filter element. In addition, in order to improve the wearing sealing and comfort of the mask, a flexible veneer body and a replaceable filter element arranged thereon are further used in combination, which reduces the self-weight of the entire mask and ensures the sealing and dryness between the mouth and nose and the mask. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1A The figure shows a front perspective structural diagram of a replaceable filter element mask according to an exemplary embodiment of the present invention. Figure 1B A schematic diagram of the back three-dimensional structure of a replaceable filter mask according to an exemplary embodiment of the present invention is shown.

[0033] Figure 2 A schematic diagram of the exploded structure of a replaceable filter cartridge mask according to an exemplary embodiment of the present invention is shown.

[0034] Figure 3A A front perspective structural diagram of a base of a base body in a mask with a replaceable filter cartridge according to an exemplary embodiment of the present invention is shown. Figure 3B A front perspective structural schematic diagram of a base of a base body in a replaceable filter cartridge mask according to an exemplary embodiment of the present invention is shown.

[0035] Figure 4A The front three-dimensional structure diagram of the flexible surface-mounted body of the base body in the replaceable filter element mask according to an exemplary embodiment of the present invention is shown. Figure 4B A schematic diagram of the front three-dimensional structure of a flexible surface-fitting body of a base body in a replaceable filter element mask according to an exemplary embodiment of the present invention is shown.

[0036] Figure 5A It shows a schematic diagram of the main structure of the first filter element in a replaceable filter element mask according to an exemplary embodiment of the present invention, Figure 5B Shown along Figure 5A The cross-sectional view along the AA line. Figure 5C Shows Figure 5B A partial enlarged view of Figure 5D The figure shows a schematic diagram of the three-dimensional structure of the first filter element in the replaceable filter element mask according to an exemplary embodiment of the present invention. Figure 5E A schematic diagram of the exploded structure of the first filter element in a replaceable filter element mask according to an exemplary embodiment of the present invention is shown.

[0037] Fig. 6A The front perspective structural diagram of the second filter element in the replaceable filter element mask according to an exemplary embodiment of the present invention is shown. Figure 6B A front perspective structural schematic diagram of a second filter element in a replaceable filter element mask according to an exemplary embodiment of the present invention is shown.

[0038] Description of reference numerals:

[0039] 10-first filter element, 11-outer non-woven fabric layer, 12-meltblown layer, 13-inner non-woven fabric layer, 14-adhesive layer, 15-release paper, 16-ultrasonic weld, 20-matrix, 30-base, 31-hard body, 32-one-way breathing valve, 33-first buckle part, 34-hanging strap fixing part, 35-first filter element pasting part, 36-veneer body installation part, 40-flexible veneer, 41-second buckle part, 42-second filter element pasting part, 50-second filter element, 60-hanging strap. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0041] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the drawings of the present invention, it is necessary to understand that different technical features that are not mutually replaceable are shown in the same drawing only for the purpose of simplifying the description of the drawings and reducing the number of drawings, rather than indicating or implying that the embodiments described with reference to the drawings include all the technical features in the drawings. Therefore, it cannot be understood as a limitation of the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The replaceable filter element mask and its components provided in the present invention are described in detail below.

[0045] Figure 1A The figure shows a front perspective structural diagram of a replaceable filter element mask according to an exemplary embodiment of the present invention. Figure 1B The figure shows a schematic diagram of the back three-dimensional structure of a mask with a replaceable filter cartridge according to an exemplary embodiment of the present invention. Figure 2 A schematic diagram of the exploded structure of a replaceable filter cartridge mask according to an exemplary embodiment of the present invention is shown.

[0046] like Figure 1A , Figure 1B and Figure 2 As shown, according to an exemplary embodiment of the present invention, the above-mentioned replaceable filter cartridge mask mainly includes a base 20 and a replaceable filter cartridge. When needed, the replaceable filter cartridge is adhered to the base 20, and the replaceable filter cartridge can be directly torn off or replaced after use. Not only is the mask more sealed, but it is also more convenient and portable to use.

[0047] According to the present invention, the base 20 includes a base 30 and a flexible face-mounted body 40. The base 30 is the main supporting component of the mask and is used to install components such as the flexible face-mounted body, the hanging strap, and the filter element; the flexible face-mounted body 40 is a component of the mask that directly or indirectly contacts the wearer's face and needs to have properties such as comfort and softness to ensure wearing comfort.

[0048] Figure 3A A front perspective structural diagram of a base of a base body in a mask with a replaceable filter cartridge according to an exemplary embodiment of the present invention is shown. Figure 3B A front perspective structural schematic diagram of a base of a base body in a replaceable filter cartridge mask according to an exemplary embodiment of the present invention is shown.

[0049] like Figure 3A and Figure 3B As shown, the base 30 in the base 20 of the replaceable filter mask of the present invention has a hollow cavity capable of accommodating the facial nose and mouth area, and a first filter element pasting portion 35 is provided on one side of the base 30 and a face body mounting portion 36 is provided on the other side. Among them, the hollow cavity of the base 30 ensures the formation of a breathing space, which is conducive to the smooth breathing of the wearer, and can accommodate the nose and mouth of the wearer, ensuring comfort while avoiding obstruction of speaking; the first filter element pasting portion 35 is used to paste the first filter element, and the external air is filtered by the first filter element before entering the human nasal cavity or oral cavity through the pasting and fixing of the first filter element. The first filter element pasting portion 35 is particularly arranged on the side away from the nose and mouth; the face body mounting portion 36 is used to install the flexible face body 40. Through the installation of the flexible face body 40, the base 30 can be prevented from directly contacting the face, thereby improving the comfort of the wearer.

[0050] According to one embodiment of the present invention, the base 30 has a hard body 31 surrounding a hollow cavity, and the hard body 31 can have a uniform or customized size, material, color and / or shape. Among them, since the hard body 31 is a hard structure with a fixed shape, it can be designed and mass-produced according to the different sizes of children, teenagers, adults or men and women to reduce production costs, and it can also be customized in material or color according to the needs of different groups of people to achieve personalized differentiation or even high-end.

[0051] For example, the hard body can be made of plastic, metal, wood, bamboo, ceramic, paper, leather or artificial leather, usually plastic. The flexible surface body in the present invention is preferably made of silicone (such as medical silicone), soft PVC or thermoplastic elastomer TPE / TPR.

[0052] In order to improve the wearer's breathing smoothness, at least one one-way breathing valve 32 is preferably provided on the side of the base. The one-way breathing valve generally includes a valve body and a valve plate. When the wearer exhales, the exhaled gas can smoothly flow out of the mask through the one-way breathing valve and the filter element, but when the wearer inhales, the external air cannot enter the mask through the one-way breathing valve and can only enter the mask after being filtered through the filter element.

[0053] The first filter element pasting portion 35 in the present invention is integrally or detachably arranged on one side edge of the base 30, and the first filter element pasting portion 35 is used to fix the first filter element. Specifically, the first filter element pasting portion 35 can be formed integrally with the base 30, or can be fixed to the base 30 by means of snap connection or the like, and the first filter element can be fixed to the first filter element pasting portion 35 by pasting. Preferably, the first filter element pasting portion 35 has a platform portion that matches the edge of the first filter element, so that the first filter element can be fixed by neatly pasting its edge on the platform portion, and it is easy to install and easy to replace and remove. However, the present invention is not limited to this, and the first filter element pasting portion 35 can also adopt other suitable structural forms.

[0054] In order to achieve wearing, the base 20 also includes a strap 60 that can be hung on the ear or head, and the base 30 is also provided with a strap fixing portion 34 for installing the strap 60. The strap 60 is detachably connected to the strap fixing portion 34. There are two straps and the length of the straps is adjustable or not. If it is to ensure the sealing as much as possible, it is preferably set as a head-hanging strap.

[0055] Figure 4A The front three-dimensional structure diagram of the flexible surface-mounted body of the base body in the replaceable filter element mask according to an exemplary embodiment of the present invention is shown. Figure 4B A schematic diagram of the front three-dimensional structure of a flexible surface-fitting body of a base body in a replaceable filter element mask according to an exemplary embodiment of the present invention is shown.

[0056] like Figure 4A and Figure 4B As shown, the flexible face-fitting body 40 has a face-fitting side that can fit with the nose and mouth area of ​​the face, and is arranged at the face-fitting body mounting portion 36 of the base 20 through the non-face-fitting side, wherein the face-fitting side refers to the side that directly contacts the face, and the non-face-fitting side refers to the side away from the face. Specifically, a nose recessed portion can be arranged on the face-fitting side according to the characteristics of the nose, a mouth recessed portion can be arranged according to the characteristics of the mouth, and a face arc portion can be arranged according to the characteristics of the cheek, thereby improving the overall fit between the flexible face-fitting body 40 and the face and further improving the wearing sealing performance.

[0057] like Figure 3A and Figure 3B As shown, the veneer mounting portion 36 is integrally or detachably disposed on the other side edge of the base 30, and the veneer mounting portion 36 is used to fix the flexible veneer 40, and the flexible veneer 40 is detachably or non-detachably connected to the veneer mounting portion 36. Specifically, the veneer mounting portion 36 can be integrally formed with the base 30, and can also be fixed on the base 30 by means of snap connection or the like.

[0058] In one embodiment of the present invention, when the flexible veneer body 40 is non-detachably connected to the veneer body mounting portion 36, the flexible veneer body 40 can be fixed to the veneer body mounting portion 36 of the base 30 by direct bonding; in another embodiment of the present invention, when the flexible veneer body 40 is detachably connected to the veneer body mounting portion 36, the veneer body mounting portion 36 is preferably provided with a first snap portion 33, and the first snap portion 33 cooperates with a second snap portion 41 provided on the edge of the non-veneer side of the flexible veneer body 40 to achieve fixation.

[0059] The first buckle portion 33 may be a slot or a ridge, and the second buckle portion 41 may be a ridge or a slot that cooperates with the first buckle portion 33. The ridge or slot may be arranged in a continuous arrangement or in an interval arrangement. For example, in this embodiment, the first buckle portion 33 provided on the surface body mounting portion 36 of the base 30 is a plurality of slots arranged in intervals, and the flexible surface body 40 has a plurality of ridges arranged in intervals correspondingly. When installing the flexible surface body 40, the ridges are sequentially inserted into the slots to achieve installation. However, the present invention is not limited thereto, and the first buckle portion 33 may also be directly provided as a continuous annular slot, and the second buckle portion 41 may be provided as a continuous annular ridge.

[0060] In addition, considering that the removable filter mask in the prior art usually cannot ensure the sealing between the mask and the face, that is, air will still enter the mouth and nose from the gap between the mask and the face, the present invention also preferably provides an additional layer of second filter element, and uses the facing side of the flexible facing body 40 as the second filter element bonding portion 42 and is used to fix the second filter element.

[0061] For example, 1A Figure 1B and Figure 2 As shown, the replaceable filter element of the present invention is composed of a first filter element 10 and a second filter element 50. The first filter element 10 is detachably arranged on the first filter element pasting portion 35 of the base 30, and the second filter element 50 is detachably arranged on the surface side of the flexible surface body 40. Among them, the first filter element 10 can effectively isolate and filter viruses, bacteria, droplets, etc. in the air, and the second filter element 50 can not only further enhance the filtering effect of the mask, but also ensure the cleanliness and dryness of the facial mouth and nose area, and effectively eliminate the dampness caused by the airtightness of the flexible surface body.

[0062] Figure 5A It shows a schematic diagram of the main structure of the first filter element in a replaceable filter element mask according to an exemplary embodiment of the present invention, Figure 5B Shown along Figure 5A The cross-sectional view along the AA line. Figure 5C Shows Figure 5B A partial enlarged view of Figure 5D The figure shows a schematic diagram of the three-dimensional structure of the first filter element in the replaceable filter element mask according to an exemplary embodiment of the present invention. Figure 5E A schematic diagram of the exploded structure of the first filter element in a replaceable filter element mask according to an exemplary embodiment of the present invention is shown.

[0063] like FIG. 5A to FIG. 5C As shown, taking the first filter element as an example, the replaceable filter element of the present invention comprises a filter element body, an adhesive layer 14 and a release paper 15. The adhesive layer 14 is formed at a predetermined position on the inner side of the filter element body, preferably formed within a range of 1 to 3 cm from the edge, and the release paper 15 is removably stacked on the adhesive layer 14. When using the replaceable filter element, the release paper 15 is torn off and then pasted to the corresponding position of the substrate 20. In addition, the replaceable filter element can be mass-produced according to the designed size and shape and packaged and sold after disinfection, and consumers can purchase and use it as needed.

[0064] like Figure 5D and Figure 5E As shown, the filter element body includes an outer non-woven fabric layer 11, a meltblown layer 12 and an inner non-woven fabric layer 13, and the outer non-woven fabric layer 11, the meltblown layer 12 and the inner non-woven fabric layer 13 are stacked from the outside to the inside, and preferably the edges are sealed and fixed to each other by ultrasonic welds 16. The meltblown layer has the functions of physical filtration and electrostatic adsorption filtration, which can effectively ensure the filtration effect. Even, the replaceable filter element can be directly processed based on the existing medical surgical mask, with a regular shape and simple processing, which effectively reduces the cost.

[0065] In addition, in order to optimize the wearer's experience, the filter element body of the present invention also includes a functional layer (not shown) arranged between the outer non-woven fabric layer 11 and the inner non-woven fabric layer 13. A cooling factor or a heat-generating factor can be added to the functional layer, which makes it more refreshing to wear in summer and more comfortable to wear in winter.

[0066] As shown in Figure 1 and Figure 5A As shown, the first filter element 10 has a shape and size that can cover the hollow cavity of the base 30, thereby ensuring the direct filtering effect of the mask and ensuring the firmness of the filter element fixation.

[0067] Fig. 6A The front perspective structural diagram of the second filter element in the replaceable filter element mask according to an exemplary embodiment of the present invention is shown. Figure 6B A front perspective structural schematic diagram of a second filter element in a replaceable filter element mask according to an exemplary embodiment of the present invention is shown.

[0068] like Fig. 6A and Figure 6B As shown, the second filter element 50 has a shape and size that can cover the facing side of the flexible facing body 40, ensuring that the air leaking in from the inside of the mask can also be filtered under the electrostatic filtration and adsorption action of the second filter element, thereby further improving the filtering effect and sealing of the mask and improving the wearing comfort.

[0069] Although the replaceable filter element of the mask of the present invention can be replaced regularly, the base part needs to be recycled for a long time. Therefore, the mask of the present invention can also include a mask storage box (not shown) that can disinfect the base 20. When not in use, the base 20 can be placed in a matching mask storage box for ultraviolet disinfection. The mask storage box can be designed according to the shape of the base, and has the functions of storing the base, ultraviolet disinfection, and disinfection completion reminder.

[0070] As for replaceable filter cartridges, since this part cannot be sterilized and is discarded after use, a filter cartridge storage box that can store replaceable filter cartridges in batches can also be prepared. This not only ensures the cleanliness of the replaceable filter cartridges, but also makes it easy to carry and replace them when going out.

[0071] In summary, the replaceable filter element mask provided by the present invention overcomes the problems of replaceable filter element masks in the prior art, and adopts a pasting method to quickly fix and replace the replaceable filter element, thereby ensuring the sealing performance while improving the user experience, and more importantly, significantly reducing the production cost and use cost. In addition, by providing a recyclable, lightweight and compact base part, it can protect comfort, save materials and be environmentally friendly. In addition, by adding a second filter element between the face and the mask, the filtering effect and wearing comfort are further guaranteed.

[0072] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A base of a replaceable filter mask, It is characterized in that The substrate comprises: The base has a hollow cavity capable of accommodating the mouth and nose area of ​​the face, and a first filter element pasting portion is arranged on one side thereof and a face-mounting portion is arranged on the other side thereof; the base has a hard body surrounding the hollow cavity; A flexible face-fitting body, having a face-fitting side capable of fitting with the mouth and nose area of ​​the face, and arranged at the face-fitting body mounting portion of the base through a non-face-fitting side; The first filter element pasting portion is integrally or detachably arranged on one side edge of the base, and the first filter element pasting portion is used to fix the first filter element; The facing side of the flexible facing body serves as a second filter element pasting portion and is used to fix the second filter element. The first filter element pasting portion has a platform portion that matches the edge of the first filter element.

2. The base of the replaceable filter mask according to claim 1, It is characterized in that The rigid body may have a uniform or customized size, material, color and / or shape.

3. The base of the replaceable filter mask according to claim 2, It is characterized in that The hard body is made of plastic, metal, wood, bamboo, ceramic, paper shell, leather or artificial leather, and the flexible surface body is made of silica gel, soft PVC or thermoplastic elastomer TPE / TPR.

4. The base of the replaceable filter mask according to claim 1, It is characterized in that At least one one-way breathing valve is arranged on the side of the base.

5. The base of the replaceable filter mask according to claim 1, It is characterized in that The veneer mounting portion is integrally or detachably arranged at the other side edge of the base, and the veneer mounting portion is used to fix the flexible veneer, and the flexible veneer is detachably or non-detachably connected to the veneer mounting portion.

6. The base of the replaceable filter mask according to claim 5, It is characterized in that When the flexible veneer is detachably connected to the veneer mounting portion, the veneer mounting portion is provided with a first buckle portion, and the first buckle portion cooperates with a second buckle portion provided on the edge of the non-veneer side of the flexible veneer to achieve fixation.

7. The base of the replaceable filter mask according to claim 6, It is characterized in that The first buckle portion is a buckle groove or a buckle edge, and the second buckle portion is a buckle edge or a buckle groove matched with the first buckle portion, wherein the buckle edges or the buckle grooves are arranged continuously or at intervals.

8. The base of the replaceable filter mask according to claim 1, It is characterized in that The base also includes a strap that can be hung on the ear or head. The base is also provided with a strap fixing part for installing the strap. The strap is detachably connected to the strap fixing part. There are two straps and the length of the straps is adjustable or not.

9. A replaceable filter element, It is characterized in that The replaceable filter element is used in conjunction with the base of the replaceable filter element mask described in any one of claims 1 to 8, and the replaceable filter element consists of a first filter element and a second filter element, the first filter element is detachably arranged on the first filter element pasting portion of the base, and the second filter element is detachably arranged on the facing side of the flexible facing body.

10. The replaceable filter element according to claim 9, It is characterized in that The replaceable filter element comprises a filter element body, an adhesive layer and release paper, wherein the adhesive layer is formed at a predetermined position on the inner side of the filter element body, and the release paper is removably stacked on the adhesive layer.

11. The replaceable filter element according to claim 10, It is characterized in that The filter element body comprises an outer non-woven fabric layer, a melt-blown layer and an inner non-woven fabric layer, and the outer non-woven fabric layer, the melt-blown layer and the inner non-woven fabric layer are stacked in sequence from the outside to the inside.

12. The replaceable filter element according to claim 11, It is characterized in that The filter element body further comprises a functional layer arranged between the outer non-woven fabric layer and the inner non-woven fabric layer, wherein a cooling factor or a heat generating factor is added to the functional layer.

13. The replaceable filter element according to claim 9, It is characterized in that The first filter element has a shape and a size capable of covering the hollow cavity of the base, and the second filter element has a shape and a size capable of covering the facing side of the flexible facing body.

14. A mask with replaceable filter element, It is characterized in that The mask comprises: A base body for a replaceable filter element as claimed in any one of claims 1 to 10; The replaceable filter element is composed of a first filter element and a second filter element. The first filter element is detachably arranged on the first filter element pasting portion of the base, and the second filter element is detachably arranged on the facing side of the flexible facing body.

15. The replaceable filter mask according to claim 14, It is characterized in that The replaceable filter element comprises a filter element body, an adhesive layer and release paper, wherein the adhesive layer is formed at a predetermined position on the inner side of the filter element body, and the release paper is removably stacked on the adhesive layer.

16. The replaceable filter mask according to claim 15, It is characterized in that The filter element body comprises an outer non-woven fabric layer, a melt-blown layer and an inner non-woven fabric layer, and the outer non-woven fabric layer, the melt-blown layer and the inner non-woven fabric layer are stacked in sequence from the outside to the inside.

17. The replaceable filter mask according to claim 16, It is characterized in that The filter element body further comprises a functional layer arranged between the outer non-woven fabric layer and the inner non-woven fabric layer, wherein a cooling factor or a heat generating factor is added to the functional layer.

18. The replaceable filter mask according to claim 14, It is characterized in that The first filter element has a shape and a size capable of covering the hollow cavity of the base, and the second filter element has a shape and a size capable of covering the facing side of the flexible facing body.

19. The replaceable filter mask according to claim 14, It is characterized in that The mask also includes a mask storage box capable of sterilizing the substrate and a filter element storage box capable of storing the replaceable filter elements in batches.

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