US2881854A - Air purifier - Google Patents
Air purifier Download PDFInfo
- Publication number
- US2881854A US2881854A US627870A US62787056A US2881854A US 2881854 A US2881854 A US 2881854A US 627870 A US627870 A US 627870A US 62787056 A US62787056 A US 62787056A US 2881854 A US2881854 A US 2881854A
- Authority
- US
- United States
- Prior art keywords
- air
- flange
- air purifier
- flanges
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0658—Filter elements specially adapted for their arrangement in vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/024—Air cleaners using filters, e.g. moistened
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0691—Adsorption filters, e.g. activated carbon
Definitions
- the present invention relates to air purifiers, and more particularly to air purifiers for attachment to the fresh air inlets of internal combustion engine driven vehicles.
- the primary object of the invention is to provide an air purifier to eliminate unpleasant odors, dirt, dust, and other foreign material from the air entering vehicles through the heating system, air conditioning system, or other fresh air inlets.
- Another object of the invention is to provide an air purifier of the class described above in which the air purifying members are easily replaceable when no longer serviceable for the purpose designed.
- a further object of the invention is to provide an air purifying apparatus of the class described above which is inexpensive to manufacture, easy to install, and which is quite effective in its action.
- Figure 1 is an exploded perspective view of the invention.
- Figure 2 is a vertical -cross-section through the invention, shown partly broken away for convenience of illustration.
- Figure 3 is ⁇ an enlarged fragmentary horizontal crosssection taken along the line 33 of Figure 2, looking in the direction of the arrows.
- the air purifier 10 comprises a side wall 11, a second side wall 12 positioned in spaced parallel relation to the wall 11, a bottom wall 13 extending between and having its opposite ends, respectively, attached to the bottom ends of the side Walls 11 and 12.
- the bottom wall 13 is provided with front and rear flanges 14 and 15, respectively.
- the side wall 11 is provided with front and rear flanges 16 and 17 on the front and rear edges, respectively, thereof, and the side wall 12 is provided with a front flange 18 and a rear flange (not shown) on its respective front and rear edges.
- An upper front cross bar 19 extends between the upper edges of the flanges 16 and 18, and an upper rear cross bar 20 extends between the upper rear flange 17 and the rear flange (not shown) on the side wall 12.
- a central flange 21 extends upwardly from the medial portion of the ⁇ bottom wall 13 in spaced parallel relation to the flanges 14 and 15.
- a flange 22 is formed on the wall 11 extending vertically thereon in alignment with the flange 21 in spaced parallel relation to the flanges 16 and 17.
- a flange 23 is formed on the wall 12 and extends vertically in alignment with the flange 21 in spaced parallel relation to the flange 18 and the flange (not shown) on the wall 12 opposite the flange 17.
- the flanges 21, 22 and 23 divide the device into two trackways for reasons to be assigned.
- the end of the purifier opposite the bottom Wall 13 is open and can be closed by means of a removable cover 24 having a depending peripheral flange 25 which engages over the cross bars 19 and 20 and the upper end portions of the walls 11 and 12.
- the cross bars 19 and 20 are provided with a plurality of outwardly vprojecting detents 26, and the flange 25 of the cover 24 is provided with a corresponding series of detent engaging sockets 27 which detachably secure the cover 24 to the purifier 10.
- a generally rectangular dust filter 28 is formed of fiberglass, steel wool, copper turnings, or other suitable material covered by an open mesh screen 29 to form a filter package.
- the dust filter 28 is positioned within the air purifier 10 between the flanges 21, 22, 23 and the flanges 14, 16, 18, as best shown in Figure 2.
- An air purifying filter 30 is formed of charcoal, reactivated carbon, or other suitable material and is enclosed in an open-Work mesh screen 31 of a generally rectangular shape.
- the air purifer 30 is positioned in the purifier 10 between the flanges 21, 22, 23, and the flanges 15, 17, and the rear flange of the wall 12.
- the arrangement of the dust filter 28 and the air purifier filter 30 is such that the air passes therethrough successively so that the ⁇ combined filtering action of the filter 28 and the filter 30 is effective on the air passing therethrough,
- the air purifier 10 is mounted in the mouth of the air intake of a motor vehicle, the conduit of the heater, or in any air inlet to the vehicle so that air entering the vehicle will of necessity pass therethrough. Obviously, the air purifier 10 will not only remove dust, dirt, and foreign material of this type from the air passing therethrough, but will in addition remove foreign materials of the type which would be absorbed on the charcoal.
- An air purifier for the fresh air intake of a motor vehicle comprising a generally rectangular open ended hollow housing having a pair of opposed side walls, a bottom wall and an open top, an inwardly extending peripheral flange integral with and adjacent one end of said housing, a second inwardly extending peripheral flange integral with and adjacent the other end of said housing, a third inwardly extending peripheral flange integral with said side and said bottom walls intermediate said first and said second flanges, a generally rectangular dust filter removably disposed intermediate and engaging against said first and said third flanges, a generally rectangular chemical purifying filter removably disposed intermediate and engaging against said second and said third flange, said dust filter being positioned in laterally spaced parallel relation to said chemical purifying filter so that air passing through said air purifier will move successively through said dust filter and said chemical purifying filter, a detachable cover for said open top of said housing and means on said housing for detachably securing said cover to said housing.
Description
n l: sa I Z5 INVENTOR ATTORNEYS April 14, 1959 F. H. UHRE, JR
AIR PURIFIER Filed Dec. 12, 1956 United States Paten AIR PURIFIER Fred Henry Uehre, Jr., Brantford, Ontario, Canada Application December 12, 1956, Serial No. 627,870
1 Claim. (Cl. 1834.3)
The present invention relates to air purifiers, and more particularly to air purifiers for attachment to the fresh air inlets of internal combustion engine driven vehicles.
The primary object of the invention is to provide an air purifier to eliminate unpleasant odors, dirt, dust, and other foreign material from the air entering vehicles through the heating system, air conditioning system, or other fresh air inlets.
Another object of the invention is to provide an air purifier of the class described above in which the air purifying members are easily replaceable when no longer serviceable for the purpose designed.
A further object of the invention is to provide an air purifying apparatus of the class described above which is inexpensive to manufacture, easy to install, and which is quite effective in its action.
Other objects and advantages will become apparent in the following specification when considered in the light of the attached drawings, in which:
Figure 1 is an exploded perspective view of the invention.
Figure 2 is a vertical -cross-section through the invention, shown partly broken away for convenience of illustration.
Figure 3 is `an enlarged fragmentary horizontal crosssection taken along the line 33 of Figure 2, looking in the direction of the arrows.
Referring now to the drawings in detail wherein like reference characters indicate like parts throughout the several figures, the reference numeral indicates generally an air purifier constructed in accordance with the invention.
The air purifier 10 comprises a side wall 11, a second side wall 12 positioned in spaced parallel relation to the wall 11, a bottom wall 13 extending between and having its opposite ends, respectively, attached to the bottom ends of the side Walls 11 and 12.
The bottom wall 13 is provided with front and rear flanges 14 and 15, respectively. The side wall 11 is provided with front and rear flanges 16 and 17 on the front and rear edges, respectively, thereof, and the side wall 12 is provided with a front flange 18 and a rear flange (not shown) on its respective front and rear edges. An upper front cross bar 19 extends between the upper edges of the flanges 16 and 18, and an upper rear cross bar 20 extends between the upper rear flange 17 and the rear flange (not shown) on the side wall 12.
A central flange 21 extends upwardly from the medial portion of the `bottom wall 13 in spaced parallel relation to the flanges 14 and 15. A flange 22 is formed on the wall 11 extending vertically thereon in alignment with the flange 21 in spaced parallel relation to the flanges 16 and 17. A flange 23 is formed on the wall 12 and extends vertically in alignment with the flange 21 in spaced parallel relation to the flange 18 and the flange (not shown) on the wall 12 opposite the flange 17. The flanges 21, 22 and 23 divide the device into two trackways for reasons to be assigned.
The end of the purifier opposite the bottom Wall 13 is open and can be closed by means of a removable cover 24 having a depending peripheral flange 25 which engages over the cross bars 19 and 20 and the upper end portions of the walls 11 and 12. The cross bars 19 and 20 are provided with a plurality of outwardly vprojecting detents 26, and the flange 25 of the cover 24 is provided with a corresponding series of detent engaging sockets 27 which detachably secure the cover 24 to the purifier 10.
A generally rectangular dust filter 28 is formed of fiberglass, steel wool, copper turnings, or other suitable material covered by an open mesh screen 29 to form a filter package. The dust filter 28 is positioned within the air purifier 10 between the flanges 21, 22, 23 and the flanges 14, 16, 18, as best shown in Figure 2.
An air purifying filter 30 is formed of charcoal, reactivated carbon, or other suitable material and is enclosed in an open-Work mesh screen 31 of a generally rectangular shape. The air purifer 30 is positioned in the purifier 10 between the flanges 21, 22, 23, and the flanges 15, 17, and the rear flange of the wall 12. The arrangement of the dust filter 28 and the air purifier filter 30 is such that the air passes therethrough successively so that the `combined filtering action of the filter 28 and the filter 30 is effective on the air passing therethrough,
The air purifier 10 is mounted in the mouth of the air intake of a motor vehicle, the conduit of the heater, or in any air inlet to the vehicle so that air entering the vehicle will of necessity pass therethrough. Obviously, the air purifier 10 will not only remove dust, dirt, and foreign material of this type from the air passing therethrough, but will in addition remove foreign materials of the type which would be absorbed on the charcoal.
Having thus described the preferred embodiment of the invention, it should be understood that numerous structural modifications and adaptations may be resorted to without departing from the scope of the appended claim.
What is claimed is:
An air purifier for the fresh air intake of a motor vehicle comprising a generally rectangular open ended hollow housing having a pair of opposed side walls, a bottom wall and an open top, an inwardly extending peripheral flange integral with and adjacent one end of said housing, a second inwardly extending peripheral flange integral with and adjacent the other end of said housing, a third inwardly extending peripheral flange integral with said side and said bottom walls intermediate said first and said second flanges, a generally rectangular dust filter removably disposed intermediate and engaging against said first and said third flanges, a generally rectangular chemical purifying filter removably disposed intermediate and engaging against said second and said third flange, said dust filter being positioned in laterally spaced parallel relation to said chemical purifying filter so that air passing through said air purifier will move successively through said dust filter and said chemical purifying filter, a detachable cover for said open top of said housing and means on said housing for detachably securing said cover to said housing.
References Cited in the file of this patent UNITED STATES PATENTS 946,874 DeFinance Jan. 18, 1910 1,963,874 Stampe June 19, 1934 2,077,951 Myers Apr. 20, 1937 2,671,528 Gross Mar. 9, 1954 2,794,514 Risley lune 4, 1957
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US627870A US2881854A (en) | 1956-12-12 | 1956-12-12 | Air purifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US627870A US2881854A (en) | 1956-12-12 | 1956-12-12 | Air purifier |
Publications (1)
Publication Number | Publication Date |
---|---|
US2881854A true US2881854A (en) | 1959-04-14 |
Family
ID=24516499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US627870A Expired - Lifetime US2881854A (en) | 1956-12-12 | 1956-12-12 | Air purifier |
Country Status (1)
Country | Link |
---|---|
US (1) | US2881854A (en) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1165434B (en) * | 1960-09-12 | 1964-03-12 | Anton Piller K G | Ventilation device for passenger vehicles, especially combat vehicles, ambulance vehicles, command vehicles or the like. |
US3738088A (en) * | 1971-06-04 | 1973-06-12 | L Colosimo | Mobile air cleaning apparatus for pollution removal |
US3883637A (en) * | 1971-03-29 | 1975-05-13 | Girdler Chemical | Catalytic method of purification of air for motor vehicle passenger compartment |
US4171210A (en) * | 1978-11-01 | 1979-10-16 | American Air Filter Company, Inc. | Unit filter including filter retaining means |
US4334899A (en) * | 1981-04-09 | 1982-06-15 | Mcconnell Paul A | Snap filter grill and assembly |
WO1986005120A1 (en) * | 1985-02-28 | 1986-09-12 | General Time Corporation | Filter element, filter, and method for removing odors from indoor air |
DE3511880A1 (en) * | 1985-04-01 | 1986-10-09 | Friedhelm 7000 Stuttgart Ohlhausen | Air supply filter for the interior of vehicles and air-conditioning plants |
DE3526802A1 (en) * | 1985-01-29 | 1987-01-29 | Hoelter Heinz | Sensor-controlled chemisorption auto filter in combination with an air conditioning unit |
US4678489A (en) * | 1982-11-19 | 1987-07-07 | John C. Bertelsen | Filtering system for paper handling machines |
US4737174A (en) * | 1987-01-20 | 1988-04-12 | Columbus Industries, Inc. | Multi-media filter frame construction |
US5004487A (en) * | 1989-04-13 | 1991-04-02 | Thaddeus Kowalczyk | Filter assembly for protecting motor vehicle occupants from pollution |
US5288298A (en) * | 1992-06-22 | 1994-02-22 | Aston William T | Antimicrobial air filter and method of making same |
US5288299A (en) * | 1991-02-22 | 1994-02-22 | Ebara Corporation | Exhaust gas treating apparatus |
US5593481A (en) * | 1995-09-25 | 1997-01-14 | General Filters, Inc. | Activated carbon air purifier |
US5755069A (en) * | 1997-03-04 | 1998-05-26 | Specialty Metal Fabricators, Inc. | Louver assembly and method for installing a louver assembly |
US5964927A (en) * | 1997-07-11 | 1999-10-12 | Donaldson Company, Inc. | Adsorption apparatus |
US6425932B1 (en) | 1999-07-07 | 2002-07-30 | The Holmes Group, Inc. | Air purifier |
US6461396B1 (en) | 1999-07-07 | 2002-10-08 | The Holmes Group, Inc. | Air purifier |
US6610118B2 (en) | 1999-07-07 | 2003-08-26 | The Holmes Group, Inc. | Air purifier |
US20040159239A1 (en) * | 2003-02-14 | 2004-08-19 | Nagem Daniel A. | Multi-phase HVAC filtration system |
US20110250834A1 (en) * | 2010-04-08 | 2011-10-13 | Mctaw Jr Johnnie | Air register assembly |
US8882874B1 (en) * | 2005-10-13 | 2014-11-11 | Jonathan Cross | Flexible, multi-cartridge, reconfigurable/selectable air contaminant control system and method for fuel cells |
US9011780B1 (en) * | 2012-05-30 | 2015-04-21 | Dust Free, Lp | Photocatalytic device for ductless heating and air conditioning systems |
US10010644B2 (en) | 2012-05-30 | 2018-07-03 | Dust Free, Lp | Photocatalytic device for ductless heating and air conditioning systems |
US10814030B1 (en) | 2018-04-06 | 2020-10-27 | Dust Free, Lp | Hybrid full spectrum air purifier devices, systems, and methods |
US20220233986A1 (en) * | 2021-01-27 | 2022-07-28 | Vironaire Inc. | High-efficiency particulate air filter assembly |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US946874A (en) * | 1908-07-30 | 1910-01-18 | Augustin De Finance | Apparatus for preventing fires in chimneys. |
US1963874A (en) * | 1931-01-26 | 1934-06-19 | Bernhard Drager | Gas mask canister |
US2077951A (en) * | 1935-06-04 | 1937-04-20 | Owens Illinois Glass Co | Air filter |
US2671528A (en) * | 1944-01-25 | 1954-03-09 | William E Gross | Air purifier |
US2794514A (en) * | 1956-01-18 | 1957-06-04 | Douglas S Risley | Smoke hood with filter unit for cooking stove |
-
1956
- 1956-12-12 US US627870A patent/US2881854A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US946874A (en) * | 1908-07-30 | 1910-01-18 | Augustin De Finance | Apparatus for preventing fires in chimneys. |
US1963874A (en) * | 1931-01-26 | 1934-06-19 | Bernhard Drager | Gas mask canister |
US2077951A (en) * | 1935-06-04 | 1937-04-20 | Owens Illinois Glass Co | Air filter |
US2671528A (en) * | 1944-01-25 | 1954-03-09 | William E Gross | Air purifier |
US2794514A (en) * | 1956-01-18 | 1957-06-04 | Douglas S Risley | Smoke hood with filter unit for cooking stove |
Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1165434B (en) * | 1960-09-12 | 1964-03-12 | Anton Piller K G | Ventilation device for passenger vehicles, especially combat vehicles, ambulance vehicles, command vehicles or the like. |
US3883637A (en) * | 1971-03-29 | 1975-05-13 | Girdler Chemical | Catalytic method of purification of air for motor vehicle passenger compartment |
US3738088A (en) * | 1971-06-04 | 1973-06-12 | L Colosimo | Mobile air cleaning apparatus for pollution removal |
US4171210A (en) * | 1978-11-01 | 1979-10-16 | American Air Filter Company, Inc. | Unit filter including filter retaining means |
US4334899A (en) * | 1981-04-09 | 1982-06-15 | Mcconnell Paul A | Snap filter grill and assembly |
US4678489A (en) * | 1982-11-19 | 1987-07-07 | John C. Bertelsen | Filtering system for paper handling machines |
DE3526802A1 (en) * | 1985-01-29 | 1987-01-29 | Hoelter Heinz | Sensor-controlled chemisorption auto filter in combination with an air conditioning unit |
WO1986005120A1 (en) * | 1985-02-28 | 1986-09-12 | General Time Corporation | Filter element, filter, and method for removing odors from indoor air |
DE3511880A1 (en) * | 1985-04-01 | 1986-10-09 | Friedhelm 7000 Stuttgart Ohlhausen | Air supply filter for the interior of vehicles and air-conditioning plants |
US4737174A (en) * | 1987-01-20 | 1988-04-12 | Columbus Industries, Inc. | Multi-media filter frame construction |
US5004487A (en) * | 1989-04-13 | 1991-04-02 | Thaddeus Kowalczyk | Filter assembly for protecting motor vehicle occupants from pollution |
US5288299A (en) * | 1991-02-22 | 1994-02-22 | Ebara Corporation | Exhaust gas treating apparatus |
US5288298A (en) * | 1992-06-22 | 1994-02-22 | Aston William T | Antimicrobial air filter and method of making same |
US5593481A (en) * | 1995-09-25 | 1997-01-14 | General Filters, Inc. | Activated carbon air purifier |
US5755069A (en) * | 1997-03-04 | 1998-05-26 | Specialty Metal Fabricators, Inc. | Louver assembly and method for installing a louver assembly |
US5987836A (en) * | 1997-03-04 | 1999-11-23 | Specialty Metal Fabrications, Inc. | Louver assembly and method for installing a louver assembly |
US5964927A (en) * | 1997-07-11 | 1999-10-12 | Donaldson Company, Inc. | Adsorption apparatus |
US6113674A (en) * | 1997-07-11 | 2000-09-05 | Donaldson Company, Inc. | Adsorption apparatus and methods |
US6425932B1 (en) | 1999-07-07 | 2002-07-30 | The Holmes Group, Inc. | Air purifier |
US7041147B2 (en) | 1999-07-07 | 2006-05-09 | Jcs/Thg, Llc | Air purifier |
US20030126844A1 (en) * | 1999-07-07 | 2003-07-10 | Barry Huehn | Air purifier |
US6610118B2 (en) | 1999-07-07 | 2003-08-26 | The Holmes Group, Inc. | Air purifier |
US6685760B2 (en) | 1999-07-07 | 2004-02-03 | The Holmes Group, Inc. | Filter assembly for air purifier |
US7276100B2 (en) | 1999-07-07 | 2007-10-02 | Sunbeam Products, Inc. | Air purifier |
US6461396B1 (en) | 1999-07-07 | 2002-10-08 | The Holmes Group, Inc. | Air purifier |
US20040168416A1 (en) * | 1999-07-07 | 2004-09-02 | Barry Huehn | Filter assembly for air purifier |
US20060185333A1 (en) * | 1999-07-07 | 2006-08-24 | Jcs/Thg, Llc. | Air purifier |
US6866695B2 (en) | 1999-07-07 | 2005-03-15 | The Holmes Group, Inc. | Filter assembly for air purifier |
US20050144914A1 (en) * | 1999-07-07 | 2005-07-07 | The Holmes Group, Inc. | Air purifier |
WO2004073823A2 (en) * | 2003-02-14 | 2004-09-02 | Nagem Daniel A | Multi-phase hvac filtration system description |
WO2004073823A3 (en) * | 2003-02-14 | 2004-11-11 | Daniel A Nagem | Multi-phase hvac filtration system description |
US20040159239A1 (en) * | 2003-02-14 | 2004-08-19 | Nagem Daniel A. | Multi-phase HVAC filtration system |
US8882874B1 (en) * | 2005-10-13 | 2014-11-11 | Jonathan Cross | Flexible, multi-cartridge, reconfigurable/selectable air contaminant control system and method for fuel cells |
US20110250834A1 (en) * | 2010-04-08 | 2011-10-13 | Mctaw Jr Johnnie | Air register assembly |
US8814144B2 (en) * | 2010-04-08 | 2014-08-26 | Johnnie McTaw, Jr. | Air register assembly |
US9011780B1 (en) * | 2012-05-30 | 2015-04-21 | Dust Free, Lp | Photocatalytic device for ductless heating and air conditioning systems |
US10010644B2 (en) | 2012-05-30 | 2018-07-03 | Dust Free, Lp | Photocatalytic device for ductless heating and air conditioning systems |
US10814030B1 (en) | 2018-04-06 | 2020-10-27 | Dust Free, Lp | Hybrid full spectrum air purifier devices, systems, and methods |
US20220233986A1 (en) * | 2021-01-27 | 2022-07-28 | Vironaire Inc. | High-efficiency particulate air filter assembly |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2881854A (en) | Air purifier | |
US3870494A (en) | Grease filter for kitchen ventilators | |
US7632340B2 (en) | Air purifier for removing particles or contaminants from air | |
US4629479A (en) | Multiple filter unit | |
US3945812A (en) | Method of filtering grease-laden air | |
CN201135626Y (en) | Air purifier | |
US4768423A (en) | Vehicle charcoal air filter assembly | |
US5141706A (en) | Air purification unit | |
JPH0729535B2 (en) | Device that supplies fresh air to the passenger compartment of the vehicle | |
DE102009023241A1 (en) | Filter device for filtering fat particles in e.g. food-wall extractor bonnet, in kitchen area, has air guiding device guiding air flow in air flow unit through filter element from outer and inner sides and from filter interior to outside | |
USRE37150E1 (en) | Occupant air filter for vehicles | |
US2771963A (en) | Air conditioning unit and air filter therefor | |
KR20180108843A (en) | Vehicle mounted air filter | |
JPH1176729A (en) | Indoor air treating filter member | |
CN206875609U (en) | Air processor with two kinds of functions of dehumidifying and purification | |
CN215153822U (en) | Air purifier in automobile | |
US2240368A (en) | Automobile heater filter | |
EP0082488A1 (en) | Apparatus for cleaning gases and liquids from toxic substances and particles in a low concentration | |
DE2621172A1 (en) | Room air purifier unit - has double skinned shell with filter cover and perforated walls housing hollow conical fan support | |
CN107650629A (en) | Vehicular air purifier | |
CA1089777A (en) | Pleated paper filter cartridge | |
CN212313239U (en) | Vehicle-mounted purifier with aromatherapy function | |
CN202036576U (en) | Traditional-Chinese-medicine-type air disinfection purifier | |
US3486312A (en) | Air cleaner | |
CN110887092A (en) | Filtering component and oil smoke purifier |