481results about "Breathing filters" patented technology

The invention discloses a clean storage system for a household breathing machine. The machine body is provided with a breathing machine placing area, a storage device, an air purification system and a display control component, an air outlet is at least formed in the breathing machine placing area or the part, close to the breathing machine placing area, of the machine body, the storage device is provided with a storage chamber, an exhaust port and a storage port capable of being opened and closed, and the storage chamber is communicated with an air supply device. The air purification system is provided with a fan, an air purification device, an air outlet and an air inlet, an airflow channel in the machine body in the air outlet direction of the air purification device is a clean air area, the air outlet communicates with the airflow channel, the breathing machine containing area forms the clean air area, and the air supply device sucks clean air. The household breathing machine platform has a special platform space for placing various types of household breathing machines, has an air source filtering and purifying function, and has the advantages that accessories / parts of the household breathing machines can be cleanly stored, indoor environment air can be purified, and the like.

A wearable air purifier is provided and includes a headgear, an air delivery mask, and a fan. The air delivery mask is connected to the headgear and bounds an air delivery region. The air delivery mask is further configured to define a first airflow path to deliver a flow of air to the air delivery region. The headgear defines a second airflow path. The fan is configured to direct airflow to the first airflow path and the second airflow path.

An apparatus or kit for a respiratory support system for delivering humidified gas to a user or patient. The apparatus comprising a humidifier chamber in pneumatic communication with a gases source, an inspiratory conduit in pneumatic communication with the humidifier chamber downstream of the humidifier chamber, a filter that is in pneumatic communication with the inspiratory conduit downstream of the inspiratory conduit, and a patient interface for delivering humidified gas to a user or patient, wherein the patient interface is in pneumatic communication with the filter downstream of the filter, or is configured to be placed in pneumatic communication with the filter downstream of the filter.

A safety helmet for a firefighter includes an outer shield having a neck opening and a front opening, a hinge located on an upper region of the front opening of the outer shield, a fire-retardant foam liner, a face shield including a sensor carrier attached to the hinge, a particulate air filter, a light emitting diode (LED) light strip, a mask mechanism configured to attach to the tapered nose opening of the transparent screen and the particulate air filter, a heads-up display (HUD) connected to an upper region of a proximal edge of the mask mechanism which faces the tapered nose opening, an oxygen port connected to the mask mechanism, a mask body connected to a distal edge of the mask mechanism, a speaker and microphone unit attached to the mask body, and a regulator nose cone.

Filter media and filters, such as air filters, residential air filters, commercial air filters, face masks, gas turbine and compressor air intake filters, panel filters, and the like, are provided that comprise a plurality of fibers with a silicone-based coating. The silicone-based coating comprises a silicone compound at least about two percent by weight of the coating. The silicone-based coating may include a reactive silicone macroemulsion and a surfactant. The silicone-based coating increases the efficiency of the filter at capturing contaminants, particularly contaminants in the E2 and E3 particle group range, without compromising other important characteristics of the filters, such as cost, longevity, dust holding capacity, and the pressure drop or air permeability of the filter.

The present invention relates, in general terms, to a face mask. The present invention also relates, in general terms, to composite material, iron-iron oxide compositions and their methods of fabrication thereof. In particular, the iron-iron oxide composition comprises a cashew testa extract and iron particles and / or oxide core-shell particles. The iron-iron oxide composition can be used as an anti-microbial composition.

This invention provides face masks, including filter masks, and methods for manufacturing them. [Solution] A face mask comprising a mask body 143 defining a cavity for accommodating the wearer's nose and mouth, and a sealing member 144 hanging down from the mask body to engage with the wearer's face, wherein the mask body includes a filter 141 and a gas inlet 142, the filter being located in a first area of ​​the mask body and the gas inlet being located in a second area of ​​the mask body, a nose portion for accommodating the wearer's nose, a mouth portion for accommodating the wearer's mouth, and a cheek portion extending laterally across the wearer's cheek.

A protective mask suited for quick regulatory approval and mass production to provide protective use of a wearer includes a mask body having a major portion forming at least one breathing opening configured for holding a filter. The mask body forms a cover contoured to cover, except for the at least one breathing opening, the wearer's mouth and nose when the mask is worn. The mask body further has a flange, wherein a length of the flange extends along a major portion of an edge of the mask body major portion, the flange being configured for pressing against the wearer's face when the mask is worn. The mask body is a material selected from the group consisting of polyethylene terephthalate, polyethylene terephthalate glycol, and poly methyl methacrylate, and combinations thereof.

The invention belongs to the technical field of masks. The technical problems to be solved are as follows: 1, designing and manufacturing the mask, the mask, the air port and the filter patch, and connecting the filter patch with the air port; 2, designing and manufacturing the anti-epidemic multifunctional mask and mask, wherein the mask and mask are connected with a medical ventilation rubber tube, and the medical ventilation rubber tube is connected with a haircut blower; the key points of the technical scheme for solving the problem are as follows: 1, novelty: the mask is designed and manufactured by using a water bucket and is never disclosed in any form at home and abroad; and 2, creativity, prominent substantive features and remarkable progress are achieved. Please see "beneficial effects"; and 3, the device is practical, can be produced and manufactured and has positive effects. Please see "beneficial effects"; and 4, the mask is not obvious and cannot be designed and manufactured by using a bucket before the application day. The key points are mainly used for realizing novelty, creativity, practicability and non-obvious property, obtaining legal protection, improving competitiveness, promoting technical exchange and obtaining economic benefits.

This invention relates to the field of respiratory equipment, specifically to a dust and toxic substance safety early warning respiratory assistance system, comprising a mask module, a purification module, and a monitoring module. The mask module includes a mask body with a first inlet and a first outlet. The purification module includes a first filter module and / or a second filter module. The first filter module is filled with a first filter material, and the second filter module is filled with a second filter material. The first and second filter modules are each detachable. The monitoring module is detachably connected to either the first or second filter module and contains sensors for monitoring the operating status of the first and second filter modules. Air passes through the purification module and the monitoring module sequentially before entering the mask body. This invention discloses a dust and toxic substance safety early warning respiratory assistance system that can intelligently monitor in real time, proactively issue an early warning in case of filtration failure, and optimize the air filtration path to maximize the utilization rate of the filter material and the purification effect.

Respirators including pleated media layers are described herein. The pleated media includes a first series of substantially parallel non-binding elastic filaments between a first non-woven porous web and a second non-woven porous web. The first nonwoven porous web is directly bonded to the second nonwoven porous web. At least a portion of the pleated media is elastically extensible under tension.

The present invention provides a mask comprising a mask body that covers the face of a wearer and a wearing string attached to both sides of the mask body, the mask body including a filter member consisting of a support layer having a mesh structure and a filter coating layer formed on the outer surface of the support layer and filtering pollutants, the filter coating layer being made of a web of fine fibers electrospun onto the support layer.

Nonwoven material, pleated filter media and filters, such as residential and commercial air filters, are provided. A nonwoven material comprises a first fiber layer and a second layer in contact with the first fiber layer. The second layer comprises two or more rows of filaments spaced from each other and extending along at least a portion of the first layer. The rows of filaments provide sufficient support to the filter media that it is capable of holding its shape over time. Thus, a filter media comprising the nonwoven material may be manufactured without a metal mesh, which improves the safety of the filter during handling and facilitates its incineration at the end of its life. In addition, the overall filter may have a lower pressure loss and a higher dust holding capacity because there it does not contain a metal mesh layer blocking air flow through the filter.

The utility model relates to the technical field of civil air defense engineering, in particular to a civil air defense filtering absorber with a ventilation conversion function, which comprises a shell, a cooling cavity is arranged in the shell, cooling water is stored in the cooling cavity, a water replenishing pipe is arranged on the outer side of the shell, and an air cooling mechanism is arranged in the shell. The air cooling mechanism comprises an air guiding pipe fixedly connected to the top end of the shell, a plurality of sets of cooling coiled pipes are arranged on the two sides of the cooling cavity, the bottom end of the shell is fixedly connected with a coolant storage box, the coolant storage box is communicated with the cooling coiled pipes, and a circulating pump is installed at the bottom end of the coolant storage box. The shell is matched with the air cooling mechanism, filtered clean air is guided into the snakelike passing pipe through the air guiding pipe, heat exchange is conducted between the snakelike passing pipe and cooling water in the cooling cavity, and therefore the heat exchange efficiency of the cooling water in the cooling cavity is guaranteed, and damage caused by high-temperature air is avoided.

The invention discloses a dustproof and anti-poison series labor protection appliance, and particularly relates to a valve cavity isolation anti-return exhaust valve structure. The mask comprises a mask shell, a double-valve-box assembly, an inter-valve isolation cavity, a valve plate positioning nail, an outer valve plate, an outer sealing opening, an inner sealing opening, an inner valve plate, a filter box clamping position and an air filter box. The double-valve-box air exhaust valve is mainly characterized in that a traditional one-way air exhaust valve is replaced with a double-valve-box assembly, an inter-valve isolation cavity is formed between an outer valve plate and an inner valve plate, and dust is blocked through the Venturi effect and the trapping effect of a low-pressure vortex area; even if dust is clamped between the outer valve plate and the outer sealing opening, the dust can be removed during next expiration, and it is guaranteed that no dust is accumulated on the edge of the inner valve plate. The problems that an existing dustproof mask, an existing gas mask and an existing mask with a valve are not tightly closed, exhaust is not smooth, and closing of a valve plate is delayed due to the fact that dust is stuck to a sealing opening are solved, and the protection performance and the wearing comfort are improved.

Systems, devices and methods are provided for producing a product comprising fibrous material, such as a filter. A system for manufacturing a product comprises a first device for isolating individual nanoparticles within a gaseous medium and a second device for combining the individual nanoparticles with fibers to form a product containing the fibers and the nanoparticles. This distributes the nanoparticles more uniformly throughout the product and in depth into the internal structure of the product. The nanoparticles increase the overall surface area within the filter media, which increases its filtration efficiency and allows for the capture of submicron contaminants without significantly compromising other factors, such as pressure drop through the filter. In addition, the filters produced with the systems and methods described herein are capable of withstanding rigorous conditioning, which allows a filter to achieve the same level of filtration performance throughout the lifetime of the filter.

According to the technical scheme, the glasses and mask all-in-one machine is characterized in that the glasses and mask all-in-one machine comprises a glasses body and a mask body, a plurality of inserting holes are formed in the glasses body, a plurality of inserting blocks are correspondingly arranged on the mask body, first magnetic attraction blocks are arranged in the inserting holes, and second magnetic attraction blocks are arranged on the inserting blocks; a power supply and a control panel are arranged in the glasses body, the power supply is connected with the control panel, the control panel comprises a power interface, and the power interface is arranged in the jack and is linked with the insertion block; the two sides of the mask body are each provided with a filtering opening and a filter, the filters communicate with the power interface through the insertion blocks, and the glasses and mask all-in-one machine can effectively protect the eyes and the nasal cavity of a worker and is convenient to disassemble and assemble.

The utility model discloses a construction site flying dust protection mask which comprises a mask body, goggles are installed on the mask body, an air suction port is installed below the goggles, a plurality of air holes are formed in one end in the air suction port, one end of the air suction port is connected with a fixing ring, and the fixing ring is connected with an air inlet. An activated carbon filter disc and a net surface filter disc are respectively mounted in the fixing ring; a protective lens is mounted on the inner side of the protective frame, a mounting groove is formed in the joint of the protective lens and the protective frame, a moving plate is mounted at one end of the protective frame, and a silica gel scraper is connected to one end of the moving plate. Compared with an existing device, the dust protection mask for the construction site has the advantages that the goggles can be protected through the protection lenses, dust can be prevented from making direct contact with the protection lenses, the goggles are high-transmittance glass lenses, the protection lenses are high-transmittance plastic lenses, and the good visual effect can be achieved through combined use; and the protective lenses can be conveniently detached and replaced through the mounting grooves.

The invention relates to a face mask comprising a compound structure with an inner layer and two sandwich layers, whereinthe inner layer is made from a filter material for filtering particles and germs,the sandwich layers are made from a textile material,the inner layer is sandwiched by the sandwich layers, andthe sandwich layers are bonded to the inner layer at least in sections along the perimeter of the face mask and in sections in the inner area of the face mask.In this way, a reusable face mask with enhanced filtration efficiency is provided.

A gas purification device for nasal applications is provided for purifying and / or reducing undesirable substances in air and / or gases to be entered into the nasal cavity. The gas purification device for nasal application can comprise a gas purification device, a shell part, a power supply part, a fan part, a filtering part, a cover body, a sterilization irradiation part, an aroma part, a nasal plug part, a monitoring part and a medicine part.

A frame insert is disclosed for use in support of a conventional protective face mask covering forming a conventional single chamber over the nose and mouth of the wearer wherein the frame insert is specially formed and configured to engage the surface coverings of the single chamber mask in a releasable attachment and provide separate isolated chambers about the nose and mouth regions with distinct air flow passages for healthier breathing by the wearer. In one aspect of the invention, the frame insert is integrally formed in a triangular shape comprising a first edge, a second edge and a curved base strut therebetween along the perimeter, the first edge and the second edge converging to meet at a vertex forwardmost on the frame insert and the base strut extending in a arcuate configuration between separate ends of the first edge and second edge rearward on the frame insert. In another aspect of the invention, the frame insert is integrally formed in a trapezoidal shape with the first edge and the second edge being joined with an intermediate edge forwardmost on the perimeter of the frame insert. Interstitial slots formed along the perimeter lengths of the first and second edge provide sliding engagement of the frame insert with the surface coverings of the mask allowing proper positioning of the frame insert within the mask with reduced leakage gaps therebetween.

The invention discloses a valve micro lip-attaching dead-cavity-free in-mask waste gas replacement structure which comprises mask belts, an air filtering mask, an exhaust valve base, an exhaust one-way sealing opening, a one-way exhaust valve plate, a telescopic adjusting pipe, a left nose exhaust pipe, a right nose exhaust pipe and the like. By adjusting the position of the exhaust unit, the exhaust one-way sealing opening is slightly attached to the lip, the nose exhaust pipe is slightly attached to the nostril, the valve plate is directly opened by means of flowing energy of exhaled air, peripheral retention air is injected by means of the Venturi effect, exhaled waste gas is completely exhausted in real time, dead space is thoroughly eliminated, and the problems of oxygen deficit, stuffiness, fogging, stinking and high breathing resistance are solved.

A compact, mask-mountable powered air purifying respirator ("PAPR") includes a housing and an impeller driven by a motor to draw air in through an inlet in the housing and direct the air to an outlet at an opposite end of the housing. The impeller comprises S-shaped fan blades that direct the air radially outward from the bottom of the impeller. The radial airflow meets S-shaped fins on a flow straightener that redirect the airflow downward through the PAPR housing outlet. The fan blades and flow straightener drive the airflow directly and efficiently, without unnecessary travel of air through the PAPR assembly, thus providing an improved airflow efficiency.

The present disclosure is related to a facial covering assembly. The facial covering assembly includes a form structure comprising a form structure opening, an inner frame coupled to the form structure, an outer frame coupled to the inner frame, a filter material coupled to the inner frame and disposed between the inner frame and the outer frame, and a fastener coupled to the inner frame. The inner frame includes an inner frame body and an inner frame opening disposed in the inner frame body. The outer frame includes an outer frame body and an outer frame opening disposed in the outer frame body.

A neck-worn air blowing mask, relating to the field of mask protection. The neck-worn air blowing mask comprises a mask, air guide pipes, and a neck-worn air purifier. The neck-worn air purifier is provided with a U-shaped neck-worn frame that can be worn on the neck, and an air filtering assembly and an air blowing assembly are arranged inside the neck-worn air purifier. The key lies in that one end of an air guide pipe is in communication with an air blowing port of the purifier, the other end of the air guide pipe is inserted from a side of the mask, and the air guide pipe is tightly sealed by means of a guide pipe strip arranged on the side of the mask. By placing the purifier main body on the neck and using an innovative structure in which the purifier main body is inserted connection with the side of the ordinary mask, the neck-worn air blowing mask solves the technical problems of existing air blowing masks being cumbersome to wear, having excessively long and unattractive pipes that restrict movement, and requiring the use of dedicated masks, and has the advantages of easy wearing, simple appearance, high comfort, and low use costs.

Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The additives are substituted heterocyclic thiolate salts. The heterocyclic thiolate salt has 2 nitrogen groups and a third group that may be an NH, N—NH2, O, or S group. The substituent group is an aromatic or heterocyclic aromatic group. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.

The invention belongs to the technical field of pipe network inspection equipment, and discloses a closed space inspection operation system which comprises an intelligent mask, a functional backpack and movable support equipment. The intelligent mask comprises a mask body and a mask function interface. The functional knapsack comprises a knapsack body and a knapsack functional assembly, the knapsack functional assembly is arranged in the knapsack body, and the mask functional interface is connected to the knapsack functional assembly. The mobile support equipment comprises a connecting cable and a functional unit, and the connecting cable is connected to the functional unit and connected to the backpack functional assembly or the mask functional interface. In the portable inspection mode, the mask function interface is connected to the backpack function assembly; in the standard operation mode, the mask function interface is connected to the backpack function assembly, and the connecting cable is connected to the backpack function assembly; and under the inspection mode, the mask function interface is connected to the connecting cable. According to the closed space inspection operation system, the working mode is selected according to different use scenes, the flexibility is high, and the intelligent degree and the closed space inspection safety are improved.

A heat and moisture exchanger (HMX) is disclosed. The HMX comprises a folded HMX material, wherein the HMX material comprises a plurality of parallel first fold lines and a plurality of second fold lines. The second fold lines are zig-zag lines which intersect each of the first fold lines, wherein the second fold lines change direction at each intersection with the first fold lines. The first and second fold lines define a plurality of tessellating parallelogram shaped panels. The first fold lines alternate between mountain folds and valley folds at each intersection with the second fold lines, wherein the second fold lines comprise alternate mountain folds and valley folds.

Metallic nanoparticle agglomerates can deliver biocidal activity to surfaces on which they are deposited and adhered, such as various air filtration media. Air filtration media can include a plurality of fibers to which a plurality of metallic nanoparticle agglomerates are adhered. The metallic nanoparticle agglomerates can include a plurality of fused, partially fused, or unfused metallic nanoparticles associated with one another on the surface of the plurality of fibers. Suitable metallic nanoparticles for facilitating biocidal activity against various pathogens, such as viruses and bacteria, can include copper nanoparticles and / or silver nanoparticles. Face masks, inline filters, and air filtration systems can integrate the air filtration media.