An air treatment system may create an air flow pattern in a vehicle interior space, using air discharges in multiple directions and louvers such that some vanes within a louver are not parallel to other vanes within the louver. An air treatment system may provide bulk air flow to the vehicle interior and directed airflow to a driver region. An air flow system may comprise, internally, a constriction bounded by an edge of a UV light shield and an edge of a filter housing. Such air treatment systems, using filtration and UV light, effectively remove or kill viruses and other pathogens, for use in buses and similar vehicles.

An air treatment system may create an air flow pattern in a vehicle interior space, using air discharges in multiple directions and louvers such that some vanes within a louver are not parallel to other vanes within the louver. An air treatment system may provide bulk air flow to the vehicle interior and directed airflow to a driver region. An air flow system may comprise, internally, a constriction bounded by an edge of a UV light shield and an edge of a filter housing. Such air treatment systems, using filtration and UV light, effectively remove or kill viruses and other pathogens, for use in buses and similar vehicles.

A switchable two-stage coalescence separation system, including a coalescer housing (1), a plurality of two-stage filter elements (2), and a particle detector (5). A lower portion and an upper portion of each of the two-stage filter elements (2) are located in a lower chamber (101) and an upper chamber (102) of the coalescer housing (1), respectively. Two gas inlet branch pipes are communicated with the lower chamber (101) and the upper chamber (102), respectively and are connected to a gas inlet main pipe (8) through a first multi-way valve (6). The particle detector (5) is disposed on the gas inlet main pipe (8). Two outlet branch pipes are communicated with the lower chamber (101) and the upper chamber (102), respectively and are connected to a gas outlet main pipe 13 through a second multi-way valve (7).

A switchable two-stage coalescence separation system, including a coalescer housing (1), a plurality of two-stage filter elements (2), and a particle detector (5). A lower portion and an upper portion of each of the two-stage filter elements (2) are located in a lower chamber (101) and an upper chamber (102) of the coalescer housing (1), respectively. Two gas inlet branch pipes are communicated with the lower chamber (101) and the upper chamber (102), respectively and are connected to a gas inlet main pipe (8) through a first multi-way valve (6). The particle detector (5) is disposed on the gas inlet main pipe (8). Two outlet branch pipes are communicated with the lower chamber (101) and the upper chamber (102), respectively and are connected to a gas outlet main pipe 13 through a second multi-way valve (7).

Methods and apparatus for sterilization are presented. An apparatus includes a sterilizing cabinet assembly including a cabinet having an access port and a bottom, the bottom configurable to induce a condensate to flow on the bottom to a vent port. The apparatus further includes a door connected to the cabinet, the door moveable between an open position permitting passage through the access port to an interior of the cabinet and a closed position precluding passage through the access port. The apparatus also includes at least one of the cabinet and the door having the vent port, and a filter overlying the vent port and forming a sealed interface with an adjacent portion of the one of the cabinet and the door.

Methods and apparatus for sterilization are presented. An apparatus includes a sterilizing cabinet assembly including a cabinet having an access port and a bottom, the bottom configurable to induce a condensate to flow on the bottom to a vent port. The apparatus further includes a door connected to the cabinet, the door moveable between an open position permitting passage through the access port to an interior of the cabinet and a closed position precluding passage through the access port. The apparatus also includes at least one of the cabinet and the door having the vent port, and a filter overlying the vent port and forming a sealed interface with an adjacent portion of the one of the cabinet and the door.

A filter frame provided in the present invention comprises a frame body including a plurality of frame strips which are combined together to form filter net disposing area, a filter net fixing member, an upper circumferential surface connecting member, a lower circumferential surface connecting member, and an adjacent member. The upper circumferential surface connecting member and the lower circumferential surface connecting member are respectively disposed along the upper circumferential surfaces and the lower circumferential surfaces of the frame strips in such a manner that the filter frame is connected to a second filter frame and/or a third filter frame along the normal direction of the filter net disposing area. The adjacent member is disposed along the outer circumferential surface of the frame strip to form an adjacent channel extending along the frame strip in such a manner that the filter frame is adjacently connected to a fourth filter frame.

In order to provide a filter system for separating off contaminants from a stream of untreated gas that contains contaminants that is of simple construction and is operable efficiently, it is proposed that the filter system should include the following: a base construction through which the stream of untreated gas is guidable and which includes at least one filter module receptacle for receiving at least one filter module, and at least one filter module which is selectively arrangeable on and/or in the at least one filter module receptacle and/or removable therefrom, wherein the at least one filter module includes a plurality of filter element receptacles for receiving a plurality of mutually independent filter elements.

In order to provide a filter system for separating off contaminants from a stream of untreated gas that contains contaminants that is of simple construction and is operable efficiently, it is proposed that the filter system should include the following: a base construction through which the stream of untreated gas is guidable and which includes at least one filter module receptacle for receiving at least one filter module, and at least one filter module which is selectively arrangeable on and/or in the at least one filter module receptacle and/or removable therefrom, wherein the at least one filter module includes a plurality of filter element receptacles for receiving a plurality of mutually independent filter elements.

A filter module and an air purifier according to an aspect of the present disclosure include a supply roller and a recovery roller, a filter wound and installed on the supply roller and the recovery roller, so that it can be used without replacing and cleaning the filter module for a long period of time by allowing a section used in the filter to be recovered in the recovery roller, and also a section not used in the filter to be supplied from the supply roller.