A seal assembly for use with an access apparatus includes an integral filter and evacuation port for filtering of fluids, e.g., smoke, from an operating site and removing contaminants and/or odor from the fluids for release of the filtered fluids into the ambient atmosphere. The seal assembly may be a separate subassembly or component which is releasably couplable to the access apparatus or may be integral with the access apparatus. The seal assembly defines its own flow path independent of the insufflation mechanism of the cannula assembly, and is capable of filtering fluids even in the presence of a surgical object positioned within the cannula assembly.

A vacuum cleaning system includes a housing, a motor connected to the housing, a debris container, a filter assembly, and a stop. The housing defines an inlet, an outlet, and a receptacle. The motor is adapted to generate air flow through the housing from the inlet to the outlet. The debris container is slidable into and out of the housing receptacle. The stop is connected to the housing and adapted to inhibit mounting the debris container when the filter assembly is absent from the debris container.

To provide a high-temperature filter having a seal to maintain filtering properties and generating less dust at a high temperature. The high-temperature filter (1) comprises a filtering medium (2) made of glass fibers, which is folded in a zigzag pattern; a separator (4) that is folded in a wave shape and inserted into gaps of the filtering medium; a frame (6) made of stainless steel that houses the filtering medium and the separator; and end seals (8) made of ceramic that is applied to the frame and solidified after an end of the filtering medium is immersed thereinto, which ceramic is modified to have a coefficient of thermal expansion that is the same as that of the stainless steel. The separator is preferably made of the glass fibers used for the filtering medium. A spacer (14) may be provided on the surface of the filtering medium instead of the separator.

A particle separator for the separation of solid particles out of a flowing fluid, the input mass flow, which is characterized in that a particle chamber for concentrating the solid particles to be separated is disposed in the flow path of the input mass flow and that at least one region of the wall of the particle chamber is implemented as a filter element through which a primary mass flow of the fluid can flow and that, additionally, at least one bypass opening is disposed in the wall of the particle chamber for the through-flow of the fluid with a secondary mass flow at higher filtration resistance.

The present invention relates to an air filter housing for supplying air to a space, said air filter housing being configured to be arranged in a ceiling of said space, said housing having a mouth facing downward, said mouth comprising a sealing surface configured to receive a panel type air filter comprising a frame and a filter medium held within said frame, such that a sealing connection between said sealing surface and said frame is achieved, characterized in that said filter housing further comprises at least one resilient member arranged below the sealing surface such that when a panel type air filter is inserted into the mouth, the resilient member will be deformed by the filter frame as the filter passes the resilient member, and resume its original shape once the filter has passed, such that the filter is retained between the sealing surface and the resilient member. The present invention further relates to the use of a filter housing in a cleanroom, and to a method of mounting a panel type air filter in an air filter housing.

A drawer type air cleaner having increased maintenance convenience is provided. The drawer type air cleaner includes a door that is configured to open or close an opening of filter receiving cavity formed in air cleaner body that suctions exterior air and discharges fresh air and a filter disposed in the filter receiving cavity and configured to filter out foreign substances from the exterior air and convert the exterior air into fresh air. The filter having a packing is disposed in the filter receiving cavity and thus provides an airtight seal between the filter and the filter receiving cavity. A filter protector is interlocked with an operation of closing the door to convert the filter from an incompletely coupled state when the filter disposed in the filter receiving cavity and is unable to compress the packing into a fully coupled state to a state when the filter compresses the packing.

An air purification device comprising: air flow path adjuster (10) and a primary filter (30), the said air flow path adjuster (10) able to change the path of the air flow within the air cleaning device, so that to enable the air bypassing or passing through said primary filter (30). The air purification device can be improved air cleaning efficiency.

An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) home air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within residential spaces. The HVAC home air filter comprises a supportive frame having a shape and size suitable to orient the HVAC home air filter within a residential HVAC system. A filter medium is retained within the supportive frame to remove the airborne molecular contaminants and VOCs from air flowing through the residential HVAC system. The filter medium comprises a combination of media layers configured to exhibit a relatively high filtration efficiency and a low air pressure drop across the filter medium. The supportive frame comprises a plurality of elongate sections and corner sections disposed along perimeter edges of the filter medium to support the filter medium within the residential HVAC system so as direct air through the filter medium.

A filter element for filtering a fluid is provided with at least one filter bellows with a first areal inflow surface for a first fluid flow of the fluid and at least one second inflow surface for a second fluid flow of the fluid separate from the first fluid flow of the fluid. The at least one second inflow surface is separate from the first areal inflow surface. A flow channel section for the second fluid flow of the fluid is provided. At least one compensation element is arranged in the flow channel section for the second fluid flow of the fluid at a raw side of the filter element. A filter system with a filter housing is provided with such a filter element arranged exchangeably in the filter housing.

An air filter has a mechanism for preventing blow-by around a perimeter of the filter. The air filter has two rigid frames surrounding a filter and at least one of the rigid frames comprises a brush seal track with a brush seal therein. The air filter includes a latching mechanism to engage the rigid frames to each other and a handle for installation and removal.