Ventilation filtering device

By designing multiple independent filter chambers and rationally arranging filter elements in the ventilation and filtration device, the problem of large product size has been solved, achieving miniaturization and efficient purification, while also having a fragrance function to meet diverse user needs.

CN223499715UActive Publication Date: 2025-10-31FREUDENBERG & VILENE NONWOVENS SUZHOU CO LTD
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Patent Information

Application Number
CN202423045311.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-10-31
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

Existing ventilation and filtration devices are bulky due to the installation of multiple filter elements, which cannot meet users' needs for product miniaturization.

Method used

Design a ventilation and filtration device that uses multiple independent filtration chambers, each containing a filter element. The filter elements are arranged in a way that partially overlaps with the vertical projection of some of the filter elements on the horizontal plane. The filter elements are rationally arranged within the housing to reduce the space occupied. At the same time, independent air inlet and outlet paths are set to improve space utilization.

Benefits of technology

It achieves miniaturization and high-efficiency purification of ventilation and filtration devices, can test the effectiveness of multiple filter elements at the same time, and improves air quality by adding fragrance elements after filtration, thus meeting the diverse needs of users.

✦ Generated by Eureka AI based on patent content.

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Abstract

A ventilation filter device comprises: a housing; the air inlet mechanism comprises at least one air inlet formed in the shell; the air inlet mechanism is arranged in the shell, the filter cavities are communicated with the air inlet mechanism, the filter cavities are arranged in the shell and separated from one another, filter elements are arranged in the filter cavities respectively, and at least one part of the filter elements are arranged in the mode that vertical projections on the horizontal plane of the filter elements are partially overlapped; and the air outlet mechanism is communicated with the plurality of filtering cavities and comprises at least one air outlet formed in the shell. According to the ventilation filtering device provided by the embodiment of the utility model, the plurality of filtering cavities are provided, and the filtering elements are respectively arranged in the filtering cavities, so that the ventilation filtering device can be suitable for different purification scenes or meet different purification efficiency requirements, and meanwhile, the use of space is reasonably optimized, and the miniaturization of products is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, and in particular to a ventilation filtration device. Background Technology

[0002] As people's living standards continue to improve, air filters, air fresheners, and other devices that improve air quality are widely used in production and daily life. Air filters typically contain filter elements to purify the air. Multiple filter elements can be used to suit different purification scenarios or meet different purification efficiency requirements. However, ventilation filtration devices with multiple filter elements usually occupy a large amount of space.

[0003] Therefore, in order to meet the market demand for product miniaturization, a ventilation and filtration device is needed to achieve product miniaturization and reduce the product's footprint. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a ventilation and filtration device with multiple filtration chambers, each containing a filter element. This device is suitable for different purification scenarios or meets different purification efficiency requirements, while also being miniaturized and reducing the floor space required.

[0005] To solve the above-mentioned technical problems, this utility model provides a ventilation and filtration device, comprising: a housing; an air inlet mechanism, the air inlet mechanism including at least one air inlet disposed on the housing; a plurality of filter chambers communicating with the air inlet mechanism, the plurality of filter chambers being disposed within the housing and separated from each other, and filter elements being disposed in the plurality of filter chambers respectively, wherein at least a portion of the filter elements are arranged in such a way that their vertical projections on the horizontal plane partially overlap; and an air outlet mechanism communicating with the plurality of filter chambers, the air outlet mechanism including at least one air outlet disposed on the housing.

[0006] Optionally, the air intake mechanism further includes at least one air intake chamber disposed within the housing, the air intake chamber being located downstream of the air inlet and upstream of the filter chamber in the airflow direction.

[0007] Optionally, the air intake mechanism includes multiple air intake chambers that are independently connected to each of the multiple filter chambers.

[0008] Optionally, the air intake mechanism includes multiple air inlets disposed on the housing and independently communicating with the multiple air intake chambers.

[0009] Optionally, the air outlet mechanism further includes at least one air outlet cavity disposed within the housing, the air outlet cavity being located downstream of the filter cavity and upstream of the air outlet in the airflow direction.

[0010] Optionally, the air outlet mechanism includes multiple air outlet chambers that are independently connected to each of the multiple filter chambers.

[0011] Optionally, the air outlet mechanism includes a plurality of air outlets disposed on the housing and independently communicating with the plurality of air outlet chambers.

[0012] Optionally, the filter elements of some of the filter chambers are arranged on the same horizontal plane.

[0013] Optionally, at least some of the adjacent filter elements are arranged in such a way that their vertical projections on the horizontal plane partially overlap.

[0014] Optionally, the filter elements within the relatively arranged filter chambers are located on the same horizontal plane.

[0015] Optionally, a fan may also be included, which drives airflow from the air inlet mechanism to the air outlet mechanism.

[0016] Optionally, the fan is installed inside the housing, and the fan is a blower fan and / or a suction fan.

[0017] Optionally, it may also include functional elements disposed downstream of the plurality of said filter elements in the airflow direction.

[0018] Optionally, it may also include functional components disposed within the housing.

[0019] Optionally, the functional element is disposed downstream of the filter element in the airflow direction.

[0020] Optionally, the functional element includes a fragrance element.

[0021] Optionally, a control mechanism may also be included, which is used to control the gas flow within the housing.

[0022] Compared with the prior art, the technical solution of this utility model embodiment has the following beneficial effects:

[0023] The ventilation and filtration device provided by this technical solution includes multiple filter chambers, each containing a filter element, which can improve the purification and filtration efficiency of air. Furthermore, at least some of the filter elements are arranged in a manner where their vertical projections on the horizontal plane partially overlap, and at least some of the filter elements are staggered in the vertical direction, which can rationally arrange the usable space inside the housing and improve the space utilization rate inside the housing, thereby facilitating the miniaturization and portability of the ventilation and filtration device.

[0024] Furthermore, the air outlet mechanism includes multiple air outlets disposed on the housing and independently connected to the multiple air outlet chambers. Each air outlet is independently connected to a multiple air outlet chamber, and each air outlet chamber is independently connected to a multiple filter chamber, thereby forming multiple independent air outlet paths flowing through the filter chambers, air outlet chambers, and air outlets. The ventilation and filtration device can be used to simultaneously test the filtration effect of filter elements in multiple filter chambers without affecting the airflow of other air outlet paths, increasing the application scenarios of the ventilation and filtration elements and improving testing efficiency.

[0025] Furthermore, it also includes functional elements, such as fragrance elements, disposed downstream of multiple filter elements in the airflow direction. When fragrance elements are disposed downstream of filter elements, the filtered airflow passes through the fragrance elements, and the ventilation filtration device can also be used as an aromatherapy diffuser, which can further improve air quality and meet users' diverse product needs. Attached Figure Description

[0026] Figure 1 This is a top view structural diagram of the ventilation and filtration device in one embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the ventilation and filtration device from a bottom view in one embodiment of the present invention;

[0028] Figure 3 It is along Figure 1 A schematic diagram of the three-dimensional cross-sectional structure along the AA direction;

[0029] Figure 4 It is along Figure 1 A schematic diagram of the cross-sectional structure along the BB direction is shown.

[0030] Figure 5 yes Figure 1 The diagram shows the structure of the ventilation and filtration device after part of the upper housing has been removed. Detailed Implementation

[0031] As described in the background section, various air filtration, purification, or air freshening products have emerged to meet people's demand for high-quality air. When multiple filter elements are required in an air filtration product, the size of the product often increases, making it impossible to meet users' needs for miniaturized products.

[0032] To address the aforementioned issues, this utility model provides a ventilation and filtration device. Multiple filtration chambers are arranged within the housing, each containing the same or different filter elements. This allows for application to different purification scenarios or to meet varying purification efficiency requirements. Furthermore, at least some filter elements are arranged with partial overlap between their vertical projections on the horizontal plane. In the vertical direction perpendicular to the horizontal plane, at least some filter elements are staggered, reducing the area occupied by the ventilation and filtration device on the horizontal plane, rationally optimizing the layout of the filter elements within the housing, improving space utilization, and meeting users' demands for product miniaturization.

[0033] To make the above-mentioned objectives, features and beneficial effects of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] Figure 1 This is a top view structural diagram of the ventilation and filtration device in one embodiment of the present invention; Figure 2 This is a schematic diagram of the ventilation and filtration device from a bottom view in one embodiment of the present invention; Figure 3 It is along Figure 1 A schematic diagram of the three-dimensional cross-sectional structure along the AA direction; Figure 4 It is along Figure 1 A schematic diagram of the cross-sectional structure along the BB direction is shown. Figure 5 yes Figure 1 The diagram shows the structure of the ventilation and filtration device after part of the upper housing has been removed.

[0035] Reference Figures 1 to 4 The ventilation and filtration device 10 includes: a housing 11; an air inlet mechanism, the air inlet mechanism including at least one air inlet 13 disposed on the housing 11; a plurality of filter chambers 12 communicating with the air inlet mechanism, the plurality of filter chambers 12 being disposed within the housing 11 and separated from each other, and filter elements 15 being disposed in the plurality of filter chambers 12 respectively, wherein at least a portion of the filter elements 15 are arranged in such a way that their vertical projections on the horizontal plane partially overlap; and an air outlet mechanism communicating with the plurality of filter chambers 12, the air outlet mechanism including at least one air outlet 14 disposed on the housing 11.

[0036] The ventilation filtration device 10 includes multiple filter chambers 12, and filter elements 15 are respectively arranged in the multiple filter chambers 12, which can improve the filtration efficiency of the ventilation filtration device 10. In addition, at least a portion of the filter elements 15 are arranged in such a way that their vertical projections on the horizontal plane partially overlap, that is, in the direction Z perpendicular to the horizontal plane, at least a portion of the filter elements 15 are staggered, thus reducing the area occupied by the filter elements 15 on the horizontal plane, thereby reducing the space occupied by the ventilation filtration device 10 and meeting users' needs for product miniaturization.

[0037] Specifically, when there are two filter chambers 12, the filter elements 15 in the two filter chambers 12 are arranged in such a way that their vertical projections on the horizontal plane partially overlap; when there are more than two filter chambers 12, some filter elements 15 are arranged in such a way that their vertical projections on the horizontal plane partially overlap, or all filter elements 15 are arranged in such a way that their vertical projections on the horizontal plane partially overlap.

[0038] When the number of filter chambers 12 is greater than two, the filter elements 15 in at least a portion of the adjacent filter chambers 12 are arranged in such a way that their vertical projections on the horizontal plane partially overlap. Specifically, the filter elements 15 in at least two adjacent filter chambers 12 are arranged in such a way that their vertical projections on the horizontal plane partially overlap, and there are no restrictions on the positional arrangement of the filter elements 15 in the remaining filter chambers 12.

[0039] In some embodiments, when the number of filter chambers 12 is greater than two, some of the filter elements 15 in the filter chambers 12 are arranged on the same horizontal plane.

[0040] In some embodiments, when the number of filter chambers 12 is greater than two, the filter elements 15 in the filter chambers 12 arranged opposite to each other are located on the same horizontal plane.

[0041] When the number of filter chambers 12 is greater than 2, some filter elements 15 are staggered in the vertical direction Z and some filter elements 15 are located on the same horizontal plane. The positions of the filter elements 15 are arranged in a reasonable manner, which can make reasonable use of the space of the housing 11, thereby helping to reduce the overall volume of the ventilation and filtration device 10.

[0042] refer to Figure 3 and Figure 4In this embodiment, a specific example is given, comprising four filter chambers 12. The filter element 15 includes a first group of filter elements 151 and a second group of filter elements 152. The first group of filter elements 151 are respectively located in the filter chambers 12 arranged opposite to each other, and the second group of filter elements 152 are respectively located in the filter chambers 12 arranged opposite to each other. The filter chambers 12 containing the first group of filter elements 151 and the filter chambers 152 containing the second group of filter elements 152 are arranged adjacent to each other. The first group of filter elements 151 and the second group of filter elements 152 are located on the same horizontal plane, and their vertical projections in the direction Z perpendicular to the horizontal plane partially overlap.

[0043] In this embodiment, the first group of filter elements 151 are arranged side by side along the first direction X, which is parallel to the horizontal plane; the second group of filter elements 151 are arranged side by side along the second direction Y, which is parallel to the horizontal plane and perpendicular to the first direction X.

[0044] In this embodiment, each filter chamber 12 is provided with a filter element 15; in other embodiments, each filter chamber 12 may also be provided with multiple filter elements 15.

[0045] In some embodiments, the air intake mechanism further includes at least one air intake cavity 16 disposed within the housing 11, the air intake cavity 16 being located downstream of the air inlet 13 and upstream of the filter cavity 12 in the airflow direction. The air intake cavity 16 and the filter cavity 12 are in communication with each other and may be identical, partially overlapping, or spaced apart from each other, for example, by a spacer plate (not shown).

[0046] In some embodiments, the air outlet mechanism further includes at least one air outlet cavity 17 disposed within the housing 11, the air outlet cavity 17 being located downstream of the filter cavity 12 and upstream of the air outlet 14 in the airflow direction. The air outlet cavity 17 and the filter cavity 12 are in communication with each other and may be identical, partially overlapping, or spaced apart, for example, by using a spacer plate 40 (see reference). Figure 5 ).

[0047] In this embodiment, the airflow direction is the direction in which the gas flows within the housing 11, and the airflow passes sequentially through the air inlet 13, the air inlet cavity 16, the filter cavity 12, the air outlet cavity 17, and the air outlet 14.

[0048] The number of air inlet chambers 16 can be one or more. When the number of air inlet chambers 16 is one, the air inlet chamber 16 is connected to all the filter chambers 12.

[0049] In this embodiment, the air intake mechanism includes multiple air intake chambers 16, and each of the multiple air intake chambers 16 is independently connected to the multiple filter chambers 12.

[0050] Specifically, in this embodiment, the number of air inlet chambers 16 is the same as the number of filter chambers 12, and the air inlet chambers 16 correspond one-to-one with the filter chambers 12 and are independently connected to each other.

[0051] In other embodiments, the number of air inlet chambers 16 may not be the same as the number of filter chambers 12. For example, one air inlet chamber 16 may be connected to multiple filter chambers 12.

[0052] The number of air inlets 13 can be one or more. When there is only one air inlet 13, the air inlet 13 is connected to all the filter chambers 12. After the airflow enters the housing 11 from the air inlet 13, it enters the filter chambers 12 that are separated from each other for air purification and filtration.

[0053] In this embodiment, the air intake mechanism includes a plurality of air inlets 13, and the plurality of air inlets 13 are independently connected to the plurality of air intake chambers 16.

[0054] Specifically, in this embodiment, the number of air inlets 13 and air inlets 17 is the same, and each air inlet 13 corresponds to an air inlet 16 and is independently connected to it.

[0055] In other embodiments, the number of air inlets 13 may not be the same as the number of air inlets 16. For example, one air inlet 13 may be connected to multiple air inlets 16.

[0056] The number of air outlet chambers 17 can be one or more. When the number of air outlet chambers 17 is one, the air outlet chamber 17 is connected to all the filter chambers 12.

[0057] In this embodiment, the air outlet mechanism includes multiple air outlet chambers 17, and each of the multiple air outlet chambers 17 is independently connected to the multiple filter chambers 12.

[0058] Specifically, in this embodiment, the number of air outlet chambers 17 is the same as the number of filter chambers 12, and each air outlet chamber 17 corresponds to a filter chamber 12 and is independently connected to it.

[0059] In other embodiments, the number of air outlet chambers 17 may not be the same as the number of filter chambers 12, and the airflow passing through multiple filter chambers 12 can be discharged from a common air outlet chamber 17.

[0060] The number of air outlets 14 can be one or more. When there is only one air outlet 14, the air outlet 14 is connected to all the filter chambers 12. After the airflow is purified and filtered by multiple filter chambers 12, it flows out of the housing 11 from one air outlet 14.

[0061] In this embodiment, the air outlet mechanism includes a plurality of air outlets 14, and the plurality of air outlets 14 are independently connected to the plurality of air outlet chambers 17.

[0062] Specifically, in this embodiment, the number of air outlets 14 is the same as the number of air outlet 17, and the air outlets 14 correspond one-to-one with the air outlet 17 and are independently connected to each other.

[0063] In this embodiment, the internal space of the housing 11 is divided into multiple independent filter chambers 12 by a partition, and the filter chambers 12 are not connected to each other.

[0064] In this embodiment, each filter chamber 12 is connected to a separate air inlet chamber 16 and air outlet chamber 17. Simultaneously, multiple air inlets 16 are independently connected to multiple air inlets 13, and multiple air outlet chambers 17 are independently connected to multiple air outlets 14. Air enters each air inlet chamber 17 and each filter chamber 12 from each air inlet 13, is filtered by the filter element 15, and then flows out of the housing 11 from each air outlet chamber 17 and each air outlet 14. Because each air inlet 13, air inlet chamber 16, filter chamber 12, air outlet chamber 17, and air outlet 14 is independent and separated from each other, and the filter chambers 12 are not interconnected, the airflow through each filter chamber 12 is also independent and does not interfere with each other, forming multiple independent ventilation paths.

[0065] In this embodiment, the ventilation and filtration device 10 can be used to test the filtration effect of the filter elements. Multiple filter elements to be tested are placed in each filter chamber 12, and then the air-related parameters before air intake and after air exhaust are detected and compared. Since each ventilation path does not interfere with each other, the filtration effect of multiple filter elements can be detected at the same time.

[0066] In some embodiments, the ventilation and filtration device 10 further includes a fan (not shown) for driving airflow from the air inlet mechanism to the air outlet mechanism.

[0067] The fan provides power for the flow of air. The fan can be a blower fan, a suction fan, or both.

[0068] When the fan is installed upstream of the airflow direction filter element 15, a blower fan can be used; when the fan is installed downstream of the airflow direction filter element 15, a suction fan can be used; or a blower fan can be installed upstream of the filter element 15 and a suction fan can be installed downstream of the filter element 15 at the same time.

[0069] The fan can be installed inside the housing 11, for example, inside the air inlet 16 or the air outlet 17; the fan can also be installed outside the housing 11, for example, at the air inlet 13 or at the air outlet 14.

[0070] In this embodiment, the fan is an intake fan, and the fan is installed inside the air outlet cavity 17.

[0071] The number of fans can be one or more. In this embodiment, there are multiple fans, which are installed in multiple air outlet chambers 17 respectively. The air outlet of each air outlet chamber 17 can be controlled independently, so that each air outlet 14 can output air independently without interfering with each other.

[0072] In other embodiments, when there is only one fan, a valve can be installed in the air outlet 17, and the air outlet 14 can be controlled by controlling the opening and closing of each valve.

[0073] Reference Figures 3 to 5 In this embodiment, a spacer plate 40 is also provided inside the housing 11. The spacer plate 40 is disposed between the air outlet cavity 17 and the filter cavity 12, and the fan is mounted on the spacer plate 40.

[0074] Specifically, in this embodiment, the spacer plate 40 is provided with a plurality of through holes 43, the through holes 43 being used to connect the filter chamber 12 and the air outlet chamber 17, the fan being mounted on the through holes 43, the air inlet of the fan facing the air inlet 13, and the air outlet of the fan facing the air outlet 14.

[0075] In this embodiment, the spacer plate 40 is further provided with reinforcing ribs 42, which divide the upper space of the spacer plate 40 into multiple regions to form independent air outlet cavities 17.

[0076] In some embodiments, the ventilation filtration device 10 may further include one or more functional elements (not shown) disposed downstream of the plurality of filter elements 15 in the airflow direction.

[0077] Specifically, the functional element can be any known additional functional element, including but not limited to one or more of the following: fragrance element, antibacterial element, formaldehyde removal element, odor neutralizing element, humidifying element, and dehumidifying element.

[0078] In this embodiment, a fragrance element is provided in the ventilation filter device 10. As the airflow moves, the fragrance of the fragrance element flows into the room, making the ventilation filter device 10 more versatile, further improving air quality and meeting the needs of users.

[0079] The functional components can be disposed inside the housing 11, for example, inside the filter chamber 12 or the air outlet chamber 17; or they can be disposed outside the housing 11, for example, at the air outlet 14.

[0080] In this embodiment, the fragrance element is disposed inside the housing 11, downstream of the filter element 15 in the airflow direction.

[0081] In this embodiment, the fragrance element can have one or more fragrance types. In this embodiment, the fragrance element has multiple fragrance types, and the fragrance element is respectively disposed in multiple air outlet chambers 17 that are separated from each other. The fragrance in each air outlet chamber 17 is emitted independently and will not be interfered with by other fragrances, which meets the usage habits of most consumers.

[0082] In this embodiment, the ventilation and filtration device 10 further includes a control mechanism (not shown), which is used to control the gas flow within the housing 11.

[0083] In this embodiment, the control mechanism further includes a control panel 20, which is used by the user to operate and view information. The control mechanism controls the ventilation and filtration device 10 according to the user's operation on the control panel 20, such as controlling the fan to turn on and off.

[0084] refer to Figure 2 The ventilation and filtration device 10 also includes a foot pad 30, which is disposed at the bottom of the ventilation and filtration device 10.

[0085] The foot pad 30 can be made of flexible materials such as rubber to provide support and also to reduce the contact between the ventilation filter device 10 and the placement surface (ground, table, etc.).

[0086] In this embodiment, the housing 11 is a square prism structure with a rounded surface, and the cross-sectional shape of the housing 11 is a rounded square, specifically, the cross-sectional shape of the housing 11 is a rounded square. The filter element 15 is square, which can better fit the accommodating space of the housing 11.

[0087] In other embodiments, the housing 11 may also be a cylindrical, triangular, or hexagonal column or other polygonal column structure, and the shape of the filter element 15 may be designed accordingly to adapt to the shape of the housing 11's accommodating space.

[0088] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A ventilation and filtration device, characterized in that, include: case; An air intake mechanism, the air intake mechanism including at least one air inlet disposed on the housing; A plurality of filter chambers are connected to the air inlet mechanism, the plurality of filter chambers are disposed within the housing and separated from each other, and filter elements are respectively disposed within the plurality of filter chambers, wherein at least a portion of the filter elements are arranged in such a way that their vertical projections on the horizontal plane partially overlap; and An air outlet mechanism communicating with the plurality of said filter chambers, the air outlet mechanism including at least one air outlet disposed on the housing.

2. The ventilation and filtration device as described in claim 1, characterized in that, The air intake mechanism further includes at least one air intake chamber disposed within the housing, the air intake chamber being located downstream of the air inlet and upstream of the filter chamber in the airflow direction.

3. The ventilation and filtration device as described in claim 2, characterized in that, The air intake mechanism includes multiple air intake chambers that are independently connected to each of the multiple filter chambers.

4. The ventilation and filtration device as described in claim 3, characterized in that, The air intake mechanism includes multiple air inlets disposed on the housing and independently connected to the multiple air intake chambers.

5. The ventilation and filtration device as described in claim 1, characterized in that, The air outlet mechanism further includes at least one air outlet cavity disposed within the housing, the air outlet cavity being located downstream of the filter cavity and upstream of the air outlet in the airflow direction.

6. The ventilation and filtration device as described in claim 5, characterized in that, The air outlet mechanism includes multiple air outlet chambers that are independently connected to each of the multiple filter chambers.

7. The ventilation and filtration device as described in claim 6, characterized in that, The air outlet mechanism includes multiple air outlets disposed on the housing and independently connected to the multiple air outlet chambers.

8. The ventilation and filtration device as described in claim 1, characterized in that, The filter elements of some of the filter chambers are arranged on the same horizontal plane.

9. The ventilation and filtration device as described in claim 1, characterized in that, The filter elements in at least a portion of the adjacent filter chambers are arranged in such a way that their vertical projections on the horizontal plane partially overlap.

10. The ventilation and filtration device as claimed in claim 1, characterized in that, The filter elements within the filter chambers, which are arranged opposite to each other, are located on the same horizontal plane.

11. The ventilation and filtration device as claimed in claim 1, characterized in that, It also includes a fan, which drives airflow from the air inlet mechanism to the air outlet mechanism.

12. The ventilation and filtration device as described in claim 11, characterized in that, The fan is installed inside the housing, and the fan is a blower fan and / or a suction fan.

13. The ventilation and filtration device as described in claim 1, characterized in that, It also includes functional elements disposed downstream of multiple of the filter elements in the airflow direction.

14. The ventilation and filtration device as claimed in claim 1, characterized in that, It also includes functional components housed within the housing.

15. The ventilation and filtration device as described in claim 14, characterized in that, The functional element is positioned downstream of the filter element in the airflow direction.

16. The ventilation and filtration device as described in any one of claims 13-15, characterized in that, The functional elements include fragrance elements.

17. The ventilation and filtration device as claimed in claim 1, characterized in that, It also includes a control mechanism for controlling the gas flow within the housing.