Abstract: An ion exchange scrubber has a housing, and a partition plate installed within the housing. The partition plate partitions an inner space of the housing in longitudinal direction into two chambers that are filled with a predetermined amount of aqueous solution. The upper end portions of the two partitioned chambers communicate with each other. At least one cartridge is installed at the upper portion and has an ion exchange resin. At least one gas inlet hole is formed in an external plate of the chamber at position below the position where the cartridge is installed. At least one gas inlet tube is connected with the gas inlet hole. A gas exhaust hole is formed in an upper plate of the housing. At least one introduction/exhaustion hole is formed at a lower portion of the chamber, for supplying or exhausting the aqueous solution. At least one connection tube connects the introduction/exhaustion holes with each other. At least one level control valve is installed in the at least one connection tube.

Abstract: An adsorbent article having a base body or matrix onto which is applied an adsorptive coating. The body or matrix can be a honeycomb matrix or structure having a plurality of cells defining a plurality of passages extending through the body. The adsorptive coating comprises an adsorptive media, such as activated carbon or ion exchange resin, that is bound by a polymeric adhesive or resin. The adsorbent article has a minimal pressure loss therethrough.

Abstract: A filter system including a housing with an intake and an outlet, a pleated carbon filter disposed between the intake and the outlet for filtering out vapors entering the intake, and a hydrophobic solution dispersed about the pleated carbon filter to inhibit adsorption of water thereby increasing the adsorption capacity of the pleated carbon filter especially in high relative humidity environments. The hydrophobic solution is selected so that it does not decrease the adsorption capacity of the carbon filter. Also disclosed is a method of making such a filter.

Abstract: A separator plate is provided in a dryer housing which is connected to a desiccant can for use in, for example, drying and cleaning the air for pneumatic lines. The separator plate includes a conical or domed section surrounded by a baffle which in combination, define an expansion chamber within the dryer housing. The expansion chamber is lined on its inner surfaces with a coalescing/filtering media which will remove oil aerosols and vapors, and water aerosols and vapors from the air passing through the housing. The separator plate also include a ring of coalescing/filtering media externally of the expansion chamber, but which the air must pass through prior to exiting the separator housing and entering the drying canister.

Abstract: A filter device for use in medical procedures such as laparoscopy is disclosed. Preferably, the device comprises a filter arrangement and a filter housing having first and second side walls, wherein at least a portion of each of the first and second side walls is flexible and porous.

Abstract: A robust, relatively simple air quality control system that can control the air quality in buildings during both the heating and cooling seasons. In one illustrative embodiment, a first air stream is directed through an air treatment module and back into the inside space. A desiccant in the air treatment module adsorbs water, volatile organic compounds and/or particulate material from the first air stream. A second air stream is then directed through the air treatment module to a location outside of the inside space. The second air stream is preferably heated relative to the first air stream so that at least a portion of the adsorbed water, volatile organic compounds and/or particulate material are desorbed from the desiccant into the second air stream. The second air stream carries the desorbed water, volatile organic compounds and/or particulate material to a location outside the inside space.

Abstract: A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assembly (42) which is latched (74, 94) with the nipples and which receives a disposable desiccant cartridge (40). In an alternate embodiment, a reusable desiccant cartridge (40′) is connected directly to the nipples (72, 92). When the desiccant cartridge (40′) is saturated, it is removed and placed in a regenerator unit (120). A regenerated cartridge is installed in its place.

Abstract: A gas separation module includes an adsorbent filter medium inside the case that holds the active gas separation membrane. The adsorbent filter is positioned upstream of the membrane and is operative to extract from the feed gas contaminants which adversely affect membrane separation performance and which if not removed, would cause the membrane separation performance to deteriorate. The adsorbent filter fits within vacant space in conventionally-sized hollow fiber membrane modules and thus can obviate the need to install an external adsorbent filter upstream of the module and/or to enlarge the space occupied by the module to accommodate addition of the internal adsorbent medium.

Abstract: The subject of the present invention is a method and a device for the separation of fuel-vapor/air mixtures into their components, in particular for purification of vapor mixtures, such as occur in fuel tanks of motor vehicles. For this purpose, a preseparator is arranged between the fuel tank and the filter. In said preseparator, the hydrocarbons are separated from the mixture and are supplied to the fuel tank again. The remaining mixture is supplied to the filter.

Abstract: The present invention relates to a hydrocarbon trap positioned in the air intake system of a vehicle, upstream from the engine and wholly in the airflow. The hydrocarbon trap comprises a holder and a material for adsorbing the hydrocarbons, inserted inside the holder. The holder comprises a screen that is added at the end facing the engine. The screen is held in place with the help of a locking mechanism. The locking mechanism comprises a locking ramp on the holder and corresponding locking tab on a clamping ring surrounding the holder.

Abstract: An adsorber for cleaning raw gas has at least one filter element wherein the at least one filter element is made of electrically conducting adsorber material. A filter module has a module housing in which such an adsorber is arranged. The housing has at least one inlet opening for the raw gas entering the filter module and at least one outlet opening for the clean gas exiting the filter module. A first ventilation damper unit closes the inlet opening as needed and a second ventilation damper unit closes the outlet opening as needed for performing regeneration and adsorption phases.

Abstract: One or two filters in brackets are integrated with a square or circular fan. Filters and associated brackets are provided both in the front and in the rear of the fan in one embodiment. In another embodiment, a single filter in a bracket is provided at the rear of the fan. The filter(s) can be pre-pleated and pre-activated carbon filter(s). The fan housing can include a pocket for adding an odorizing and/or deodorizing agent. A plurality of stick-on right-angled brackets having the capacity of adjustable clearance to snugly hold the filters is another embodiment.

Abstract: The operating system of a gas engine accommodating to sour gas comprises a sour gas compressing and feeding part including a compressor 11 and a gas engine 12, a pre-membrane-treatment 13 for obtaining a compressed gas of proper temperature 13a removed of oil, solid mixture, etc. from the high pressure, high temperature sour gas 11a discharged from the compressor, a preceding step filter 18 for removing a minute amount of oil and water contained in the branched off gas 13b of the compressed gas of proper temperature 13a, a membrane separator for separating the gas from the filter 18 into sweet gas 21 and the hydrogen sulfide gas, and an adsorptive separator 20 through which sweet gas is obtained only at the time of starting of the compressor 11.

Abstract: An HC adsorbing sheet inside an air cleaner is disposed such that a large amount of activated carbon is contained on the side of an engine and that a small amount of activated carbon is contained on the other side of the engine. Thus, the HC adsorbing sheet can efficiently adsorb evaporative fuel. That is, by changing the amount of activated carbon contained in accordance with differences in concentration of evaporative fuel, it becomes possible to prevent the pressure loss in an intake system from increasing. On the other hand, one end of a second intake pipe extends to a region where the amount of activated carbon contained in the HC adsorbing sheet is large, whereby it becomes possible to concentratively supply activated carbon with intake air in the region where the large amount of activated carbon is contained. Therefore, the efficiency in purging evaporative fuel can be prevented from declining.

Abstract: An integrated filter body and adsorbent unit capable of being integrally fastened together for easy and economical assembly into a refrigerant pressure vessel assembly. The integrated filter and adsorbent unit includes a filter puck, an adsorbent unit mounted to the filter puck, and an integral feature on the filter puck for integrally fastening the adsorbent unit to the filter puck. The adsorbent unit includes a desiccant bag and a flap that has a mounting aperture and a fastening hole extending therethrough. The filter puck includes a disc-shaped body portion and a projection for cooperation with the fastening hole of the adsorbent unit. The projection is displaced to form an enlarged head for trapping the flap of the desiccant bag to the filter puck.

Abstract: A method for the separation of a gas mixture comprises (a) obtaining a feed gas mixture comprising nitrogen and at least one hydrocarbon having two to six carbon atoms; (b) introducing the feed gas mixture at a temperature of about 60° F. to about 105° F. into an adsorbent bed containing adsorbent material which selectively adsorbs the hydrocarbon, and withdrawing from the adsorbent bed an effluent gas enriched in nitrogen; (c) discontinuing the flow of the feed gas mixture into the adsorbent bed and depressurizing the adsorbent bed by withdrawing depressurization gas therefrom; (d) purging the adsorbent bed by introducing a purge gas into the bed and withdrawing therefrom an effluent gas comprising the hydrocarbon, wherein the purge gas contains nitrogen at a concentration higher than that of the nitrogen in the feed gas mixture; (e) pressurizing the adsorbent bed by introducing pressurization gas into the bed; and (f) repeating (b) through (e) in a cyclic manner.

Abstract: A fuel vapor treatment system for an automotive vehicle on which an internal combustion engine is mounted. The fuel vapor treatment system includes a canister connected to a fuel tank and containing a fuel vapor adsorbing material which generates endothermic energy during desorption of fuel vapor. A membrane separation module is provided to be connected to the canister and including a separation membrane for separating a mixture gas purged from the canister into an air-rich component and a fuel vapor-rich component. Additionally, a condenser is provided to be connected to the membrane separation module to be supplied with the fuel vapor-rich component from the membrane separation module. The condenser is housed in the canister and adapted to cool and liquefy fuel vapor in the fuel vapor-rich component to obtain liquefied fuel by the endothermic energy generated in the canister, the liquefied fuel being recovered.

Abstract: A filter material includes a filter pad made from a thin, nonwoven fiber mat which has been accordion-pleated, compressed into a unit having a large number of substantially parallel interconnected filter strips, and treated to retain the filter strips in substantially parallel relation to each other. In a preferred embodiment, activated carbon particles are operatively associated with the filter pad. Selected fibers of the nonwoven fiber material are hollow fibers, each having an outer surface, a hollow internal cavity, and an extended slot formed therein, between the hollow internal cavity and the outer fiber surface. Carbon particles may be located between selected filter strips, and additional carbon particles may be disposed within the cavities of the hollow fibers. Methods of forming the filter material, and a filter element made with the filter material are also disclosed.

Abstract: A drying agent box 10 which serves to remove moisture from air, especially for a compressed-air brake apparatus, and which comprises a housing 11 with at least one inlet 14 and at least one outlet 15, the housing 11 being formed by a container 12 and a flange 13. A drying agent body 18, which has a stable shape, is contained in the housing 11. Channels 22 may optionally be provided in the drying agent body for guiding the flow of air through the body. Different ways of installing the drying agent body 18 in the housing 11 also are described. Due to the stable shape of the drying agent body 18, the structure of the drying agent box is simplified because there is no need for components to hold a granular drying agent in place.

Abstract: A discharge gas containing PFC gas including CF4 and NF3 generated from a manufacturing process (10) is adsorbed at an adsorbing device (18) and then desorbed using nitrogen as a purge gas. A desorbed gas with CF4 and NF3 concentrated can be obtained in this manner. The desorbed gas is then supplied to a chromatographic separator (20) for chromatographic separation with nitrogen as a carrier gas. In this manner, CF4 and NF3 within the PFC gas can be separated. In particular, because the gas is once concentrated at the adsorbing device (18), chromatographic separation of the gas constituents can be efficiently performed. By independently concentrating CF4 and NF3 obtained by the chromatographic separation, high purity gas constituents of the PFC gas can be obtained, and reused at the manufacturing process (10).

Abstract: An integrated filter body and adsorbent unit capable of being integrally fastened together for easy and economical assembly into a refrigerant pressure vessel assembly. The integrated filter and adsorbent unit includes a filter puck, an adsorbent unit mounted to the filter puck, and an integral feature on the filter puck for integrally fastening the adsorbent unit to the filter puck. The adsorbent unit includes a desiccant bag and a flap that has a mounting aperture and a fastening hole extending therethrough. The filter puck includes a disc-shaped body portion and a projection for cooperation with the fastening hole of the adsorbent unit. The projection is displaced to form an enlarged head for trapping the flap of the desiccant bag to the filter puck.

Abstract: To provide a mounting structure for a gas adsorption filter and a housing equipped with the gas adsorption filter that make it possible to overcome the contradiction between achieving a further reduction in the size of airtight containers such as casings for magnetic storage disk devices, and ensuring improved control over moisture, noxious gases, and other types of contaminants in the airtight containers.

Abstract: One or two filters in brackets are integrated with a square or circular fan. Filters and associated brackets are provided both in the front and in the rear of the fan in one embodiment. In another embodiment, a single filter in a bracket is provided at the rear of the fan. The filter(s) can be pre-pleated and pre-activated carbon filter(s). The fan housing can include a pocket for adding an odorizing and/or deodorizing agent. A plurality of stick-on right-angled brackets having the capacity of adjustable clearance to snugly hold the filters is another embodiment.

Abstract: A method and system for retrofitting an integrated scrubber to provide maximum oxygen content in a controlled decomposition oxidation (CDO) abatement process including a thermal/wet integrated scrubber, and a compressed air supply for supplying air to an oxygen separation device that separates the air into a nitrogen-enriched component and an oxygen-enriched component. The oxygen separation device includes a module, such as a vessel containing ceramic-materials arranged in an adsorbent bed or coated on a substrate. The present invention uses a ceramic oxide material through which only oxygen can diffuse. The composition of the ceramic oxide adsorbent material is such that a significant number of oxygen vacancies exist in the material. By placing either a voltage potential or a pressure gradient across the membrane, oxygen is selectively diffused in and through the oxide material to separate the air supply into an oxygen component for introduction into the integrated scrubber.

Abstract: The present invention relates to air deodorizing devices for removing malodor from the air. Such devices are useful for example for storing and preserving food in closed compartments such as refrigerators. The air deodorizing device of the present invention comprises a cartridge member and an air moving member whereby the cartridge member is detachable from the device.

Abstract: Described is a filter apparatus (10) having an activated carbon molded body (12) with a honeycomb structure. The filter apparatus (10) has connection elements (16, 18) at the feed flow end and the discharge flow end. The activated carbon molded body (12) is provided in a sealing element which is sealingly connected to the two connection elements (16, 18). The sealing element (20) is formed by a shrink tube (22) into which the activated carbon molded body (12) is shrunk and which is shrunk sealingly on to the connection elements (16, 18). The activated carbon molded body (12) can be in one piece or can comprise at least two mutually spaced activated carbon body portions (42).

Abstract: There is provided a heavy oil fired boiler exhaust gas treatment apparatus which removes soot and dust and SO3 in the heavy oil fired boiler exhaust gas efficiently at a low cost without using an excessively large apparatus. The treatment apparatus comprises a charging device 3 provided at the inlet of an absorption tower of a wet type exhaust gas desulfurizer 4 and neutralizer pouring means A provided on the upstream side of the charging device 3 to pour a neutralizer into exhaust gas and neutralize SO3 in the exhaust gas.

Abstract: A method of cleaning flue gases from gaseous pollutants formed during combustion of oil during start-up of a boiler and/or operational disturbances in the boiler, wherein the boiler is for combustion of fuel including one of fossil fuel, coal, biomass fuel and waste. Flue gases are conducted from the boiler through a flue duct to a barrier filter for seperation of particulate pollutants. Finely-dispersed particles are introduced into and mixed with the flue gases in the flue duct in at least one of upstream of and in the barrier filter. The finely-dispersed particles are separated in the barrier filter while forming a dust cake. Condensed gaseous pollutants and droplets are taken up on the surface of the finely-dispersed particles in the flue gases and in the dust cake.

Abstract: A grease containment assembly to collect grease discharged from a grease exhaust system that has an exhaust duct extending upwardly from a roof top and interconnected to a fan base that connects to an exhaust fan. The grease containment includes a plurality of interconnecting channels positioned around the exhaust duct to form a frame surrounding said exhaust duct. The channels further include a water channel running along the bottom portion defined therein. A sorbent material is further received within the interconnecting channels, having properties that absorbs grease and repels water. A plurality of egresses positioned in the interconnecting channels permit water running along the water channels to drain out of the interconnecting channels.

Abstract: A gas production plant has a first separator receiving a feed gas and produces a first offgas stream and a first product stream, and a second separator receives the first offgas stream and produces a second product stream and a second offgas stream. A liquefaction unit receives at least part of the first product stream and at least part of the second offgas stream, and produces a third product stream and a third offgas stream. A first portion of the third offgas stream is combined with the first offgas stream, and a second portion of the third offgas stream is used as a non-waste gas. In a method of removing a first and a second gaseous component from a feed gas, a PSA unit produces a first product stream and a first offgas stream. The first offgas stream is fed into a liquefaction unit that produces a second product stream and a second offgas stream, and at least part of the second offgas stream is recycled into the PSA unit.

Abstract: Air in a compressed air system is cleaned by consecutively passing the air through a pre-filter (6), silica gel with large pores (7), silica gel with fine pores (8), a molecular sieve (9), and a fine filter (10).

Abstract: A serviceable filtering oil removal cartridge for use in a compressed air assembly of a vehicle air brake system includes a housing having a first end and a second end. A filtering element is disposed within the housing for agglomerating and removing oil from compressed air entering the oil removal cartridge. A load plate is disposed within the housing for supporting the filtering element. The load plate includes a connecting portion dimensioned to allow the oil removal cartridge to be removed and installed as a single unit. The connecting portion is preferably a threaded annulus.

Abstract: An injection molding die for manufacturing a plastic frame on filter cassettes using edge-side plastic extrusion coating of the longitudinal sides of a zigzag-shaped, folded filter material, the die halves of the injection molding die being configured so as to engage each other in a tooth-like manner and forming a receiving space for the filter material and a molding space for the plastic frame, which are separated from each other by a clamping area formed by one of the tool teeth, in the clamping area (31) of the longitudinal sides (4) of the injection molding die (30), the gap dimension (7, 17) between the closed mold halves (1, 2) of the injection molding die (30) in the curved area (32) of the upper and/or lower fold flanks (9, 10) of the filter material (3) being smaller or greater than the gap dimension (8) of the fold flanks (11).

Abstract: A venting device that reduces the moisture of an enclosure containing a heat source and prevents the entrance of water or other liquids and contamination from entering the enclosure. The moisture reducing device comprises a drying agent or desiccant which is adjacent to said heat source (such as an automotive headlamp bulb or thermally cycling device), an air-impermeable, water-vapor permeable layer, a vent that allows bulk flow of air during thermal cycling of the heat source and a internal diffusion tube or channel that limits the entrance of moisture vapor from the external atmosphere to the drying agent or desiccant. The air-impermeable, water vapor permeable layer allows for continuous diffusion of water vapor, reducing the moisture in the enclosure when the heat source is de-energized. The location of the device to the heat source regenerates the drying agent in the device when the heat source is energized.

Abstract: A clean, high efficieny, low pressure drop, adsorptive filter material that is porous and includes an acidic functional group. The filter can include, for example, a non-woven filter composite has a porous sulfonated divinyl benzene styrene copolymer beads having sulfonic acid functional side groups. The non-woven filter is used to remove molecular bases, including ammonia, organic amines, inides, aminoalcohols, alcoholoamines from the atmosphere used in semiconductor fabrication and other processes that require uncontaminated gaseous environments of high quality.

Abstract: A filter assembly for a disk drive includes an outer shell through which gases flow in and out of the disk drive. The shell includes a tubular housing that extends into the disk drive. A first filter lies secured to an end portion of the housing and filters gases circulating within the disk drive and entering into the disk drive. The housing contains a second filter that includes an adsorbent body and a third filter that extends across an opening in the housing and helps contain the second filter within the housing.

Abstract: The present invention is directed to a procedure for recycling used gasses and to devices that can be use to accomplish this recycling.

Abstract: A one-way degassing valve (4) for containers of aromatic products such as coffee and the like, comprising a valve body (5, 6), a valve element (12) and a filter (17), comprising a selective filter layer (21a), preferably consisting of activated charcoal, which allows the passage of low molecular weight gases, such as carbon dioxide, and retains high molecular weight gases that constitute the product's aroma, and an oxygen and CO2 adsorbing layer (21b), able to eliminate the residual oxygen present in the container and suitably reduce the amount of CO2.

Abstract: An air filtration system for vehicles, aircraft and spacecraft includes a filter element for filtering air passing through an air vent thereby cleaning the air of toxic substances such as smog, exhaust fumes, noxious gases, diesel fumes, asphalt odors and many other combustion odors., in addition to emitting an aroma scent of fragrance providing a pleasant smell which will not interefere with the cleaning process of the air. The filter having a size and shape such that the filter element fits across the path of the air passing through the air vent and the structure for removably mounting the filter element on the vehicle in the path of air passing through the air vent so that its cleans the air in the enclosed enivronment of the cabin of the vehicles.

Abstract: Gas mixtures of SF6 and N2, which have been used, for example, as an insulating filler gas for underground cables, for insulating-gas window panes or as a filler gas for car tires and SF6/air mixtures which have been used as a protective gas when casting magnesium can be separated if they are contacted with hydrophobic zeolites of a certain pore size as selective adsorption agent for sulfur hexafluoride. For a relatively high SF6 concentration, the mixture is preferably first subjected to a membrane separation process and the permeate is contacted with the adsorption agent. The invention also relates to an apparatus for carrying out the process. The process may also be used for separating SF6 from exhaust gases.

Abstract: A sheet-like adsorption filter formed by sandwiching particulate activated carbon with heat-resistant nets and non-woven fabric sheets that have a percentage of void of 90% or higher, is disposed at an internal combustion engine side of a filter element.

Abstract: An air cleaner includes at least one more installation hole provided in a resin frame of an adsorbent sheet than there are pins and engaging hooks respectively provided in an upper housing.

Abstract: An evaporated fuel discharge preventing apparatus, in order to sufficiently adsorb and collect an evaporated fuel generated in an intake air passage at a time when an engine stops, and to prevent an engine performance from being reduced by reducing an intake air resistance in an evaporated fuel adsorbing portion at a time when the engine is driven, has an adsorbing device arranged in a passage between an evaporated fuel generating portion and an air cleaner element, and, the adsorbing device is formed by an intake air passage portion laterally arranged within the device penetratingly and communicated with the passage at both ends, an adsorbent layer arranged on an outer periphery of the intake air passage portion, and a member covering an outer surface in a non-ventilating state except a side of the intake air passage portion in the adsorbent layer, and an inner diameter of the intake air passage portion of the adsorbing device is set to be substantially equal to or more than an inner diameter of the intake a

Abstract: A filtering mass in sheet form for an air filter for an enclosed space, particularly a motor vehicle cabin, comprising elements made of standard-type materials normally used to form filtering masses and carbon elements rendered active in the adsorption of gaseous substances.

Abstract: A filter unit comprising a filter part made of an adsorbent-bearing filtration material and characterized in that said filter part is integrally molded with a filter holding frame made of a thermoplastic resin and that the adsorbent of the filter part is packed to the position contacting the filter holding frame.

Abstract: A one-way degassing valve (4) for containers of aromatic products such as coffee and the like, comprising a valve body (5, 6), a valve element (12) and a filter (17), comprising a selective filter layer (21a), preferably consisting of activated charcoal, which allows the passage of low molecular weight gases, such as carbon dioxide, and retains high molecular weight gases that constitute the product's aroma, and an oxygen and CO2 adsorbing layer (21b), able to eliminate the residual oxygen present in the container and suitably reduce the amount of CO2.

Abstract: The invention relates to a device for filtering contaminants, such as particulates and vapor phase contaminants, from a confined environment such as electronic or optical devices susceptible to contamination (e.g. computer disk drives) by incorporating multiple filtration functions into a unitary filter. Filtration functions include a combination of inlet, or breather, filter and recirculation filter. Moreover, adsorbent functions can be added to the filter depending on desired functionality within the enclosure.

Abstract: An air cleaner wherein an element for filtering intake air and an absorber member for absorbing fuel vapor are disposed within a housing. Within the housing, a stopper portion for tentatively attaching the absorber member and a seat portion capable of receiving the absorber member at a side opposite from the stopper portion are formed near a site where the element is mounted. The element or the absorber member has a presser portion that retains the absorber member in a state where the absorber member is pressed against the seat portion, when the element is mounted within the housing.

Abstract: An apparatus and process for separating perfluorocarbon compounds from a gas mixture passes an incoming stream of a gas into a cold trap, the gas stream including a plurality of perfluorocarbon compounds. The gas mixture is cooled within the cold trap to a temperature below −100° C. to produce a condensate that is enriched in at least one perfluorocarbon compound and a non-condensed stream from which the condensate was separated. The condensate is withdrawn from the cold trap. The condensate may be withdrawn by warming the cold trap to vaporize the condensate and thereafter flowing the vaporized condensate into a storage vessel. The non-condensed stream may be vented to the atmosphere, re-circulated into the cold trap or flowed through subsequent separation processes to extract additional perfluorocarbon compounds.

Abstract: An integrated air filter and hydrocarbon adsorbing apparatus includes an air filter comprising a filter media disposed on a screen support and an air permeable hydrocarbon adsorbing material disposed between the filter media and the screen support at the air stream outlet end of the apparatus. The hydrocarbon adsorbing material is situated to adsorb hydrocarbon emissions at the clean air side of an air stream flowing through the apparatus. The treated air stream exits through the air stream outlet, typically to an inlet of an engine air induction system. In an alternate embodiment, the integrated air filter and hydrocarbon adsorbing apparatus comprises a hydrocarbon adsorbing coating directly disposed on a portion of the air filter adjacent the air stream outlet.