A fluid filtration system that includes one or more layers, including a trapping layer and a reactive layer, connected to a frame. A method for fluid filtration that includes sorbing contaminants, trapping contaminants, and degrading contaminants.

An air purification and disinfection system includes an apparatus having a housing, an ultraviolet disinfection chamber, an air mover, and an air distribution unit in communication with the disinfection chamber. Air is passed through the disinfection chamber where it is purified and disinfected before it is delivered to the user of the apparatus through the air distribution unit. The apparatus can be configured as an open or a closed circuit system. The system may be configured to purify air in an airplane, a conference room, a classroom, or as a portable unit for an individual user. As a portable unit the disinfection chamber can be incorporated into a back pack, a vest, a purse, a briefcase, a shoulder bag, a cervical collar, or any other format for being carried by the user.

A fossil fuel fired power plant exhaust gas clean-up system is provided to remove detrimental compounds/elements from the exhaust gas emitting from the power plant to protect the environment. This is accomplished primarily by directing the exhaust gas from a fossil fuel fired power plant through both a reaction chamber containing a chemically produced compound and a catalytic converter. The final exhaust gas can now be safely exhausted to the atmosphere and only contains nitrogen gas, oxygen, water and a trace amount of carbon dioxide.

A filter assembly including a plurality of filter modules, wherein each filter module in the plurality of filter modules includes a frame, a filtration element coupled within the frame, and at least one mating feature. The at least one mating feature of each filter module is configured for selective engagement with the at least one mating feature of another filter module such that the plurality of filter modules are coupled together in a serial arrangement.

In some embodiments, an indoor air cleaning apparatus and a method for removing at least a portion of at least one type of gas from an indoor airflow are disclosed. The apparatus may comprise a cabinet; at least one sorbent bank comprising at least one cartridge; a fan assembly comprising at least one housing including at least one housing inlet and at least one housing outlet, at least one motor and at least one impeller; and a heating element configured to operate in at least one of two modes: an active mode and an inactive mode; and a controller configured to operate in at least two modes: an adsorption mode and a regeneration mode.

The technology disclosed herein relates to filter assemblies and methods of making filter assemblies. One filter assembly has a first sheet of filter media having a first perimeter region and a second sheet of filter media having a second perimeter region. The first perimeter region and the second perimeter region are bonded in a rim region. A plurality of adsorbent beads are disposed between the first sheet of filter media and the second layer of filter media, and a substantial portion of the plurality of adsorbent beads are unbonded. Other embodiments are also described.

The disclosure relates to an apparatus for reducing the quantity of solid particles in ambient air. A predefined treatment area is delimited at least in part by an enclosure. The enclosure is at least partially non-physical and formed by at least one air curtain that can be produced by an air flow generating device. At least one air filter device, which is connected in terms of flow to the ambient air of the treatment area is designed to filter solid particles directly out of the ambient air of the treatment area.

An immersion cooling system for electronic equipment including a tank adapted to hold a liquid heat transfer fluid into which the electronic equipment can be immersed and a filter assembly(ies) having a filter housing with an inlet and an outlet and containing a filter cartridge. In some embodiments the filter assembly(ies) is adapted to be located in the heat transfer fluid in the tank, such that a cross-sectional area of the filter housing inlet is greater than a cross-sectional area of the filter housing outlet, the filter housing inlet is substantially vertically oriented on a side of the filter housing, the filter cartridge is positioned within the filter housing at an inclined angle relative to the filter housing inlet, and the filter housing outlet is disposed adjacent to a top of the housing. Advantageously, heat generated by the immersed electronic equipment produces a convective flow of heat transfer fluid through the filter housing.

The disclosure relates to a respirator mask including a mask body and at least one filter for filtering a fluid (e.g. air) flowing through the mask and/or the mask body. The at least one filter may include one or more of: an Ultra-Violet (UV) filter and/or UV emitter, a filter fleece, and/or an electrical and/or electrostatic filter.

A product gas filter with a filter housing, into which product gas of a wood gas reactor is supplied, by means of a product gas line, and is discharged as clean gas through a clean gas line. Long-chain hydrocarbons in the product gas stream can be at least substantially reduced, and a high filter performance achieved, where the filter is divided gas-tight into two parts by a separating tray in such a way that the product gas line is delivered to the lower region and the clean gas line exits from the upper collecting space; at least two filter cartridges, each coupled individually to a compressed air line and compressed air source, project into the lower region; and a zeolite container is connected to the lower portion of the filter via a compressed air source connectable, Venturi nozzle and a lockable line.