A flat filter element to be mounted in a filter housing has an inflow surface and an outflow surface downstream of the inflow surface in a flow-through direction. A filter medium extend between the inflow surface and the outflow surface. A sealing section extends circumferentially relative to the flow-through direction. A seal fastened to or interacting with the sealing section is provided, wherein the seal, when the flat filter element is mounted in a filter housing, separates an inlet of the filter housing for air to be purified from an outlet of the filter housing for purified air. A first functional element section is arranged on at least one circumferential side of the filter medium so as to be spaced apart from the circumferentially extending sealing section. The first functional element section is attached to a lateral strip and the lateral strip is attached to the filter medium.

An air filter has a filter housing and a filter element inserted in the interior of the filter housing. The filter element has an inflow surface and an outflow surface and a filter medium that extends between inflow and outflow surfaces. The filter element has a circumferentially extending seal arranged in the area of the inflow surface or outflow surface and interacting in the mounting position with the sealing surface of the filter housing to separate inlet and outlet of the air filter. A support device clamps the filter element transversely to the insertion direction in the filter housing by a transverse clamping action in a support area that is spaced from the seal. The transverse clamping action results by an insertion movement of the filter element into the filter housing by interaction of the filter element with inner sides of the filter housing.

An emergency escape kit is described, which includes: an emergency escape punch having an obstacle contact portion configured to be in close contact with an obstacle such as a glass window, and configured to shatter the obstacle by pressurizing a side thereof opposite to the obstacle contact portion located between the obstacle and the side of the emergency escape punch; and a gas mask configured to be couplable to or separable from the emergency escape punch, wherein when the gas mask is coupled to the emergency escape punch, the gas mask shields a portion of the emergency escape punch from an outside of the emergency escape punch, and when gas mask is separated from the emergency escape punch and is brought into close contact with respiratory organ of a user, the gas mask prevents external poisonous gas from flowing into the respiratory organ of the user.

An air filter suitable for temporary or interim use is configured to be removeably affixed over or inside the return air duct boot of a building under construction. In one embodiment, the air filter comprises a piece of air filtration material having a resilient, shaped, stretchable perimeter and further comprising integral magnetic strips suitable to adhere the invention to a metal return air duct boot. In a preferred embodiment, one or more layers of air filtration material are affixed to a shaped frame and may further comprise a plurality of magnets and billowable fabric to retain the invention sealably in position in the return air duct boot.

A connection includes a first component, second component and a cord member. The first component has an opening with an inner surface and a first annular groove disposed about the inner surface. The second component has a top end configured to fit in the opening. The top end has an outer surface with a second annular groove disposed about the outer surface. The first annular groove and the second annular groove are configured to form a channel in response to being disposed in cooperative alignment. The cord member is configured to be removably inserted into the channel to secure the first component to the second component. The cord member includes a tapered portion disposed at a distal end of the cord member and is configured to provide a mechanical advantage to urge the first annular groove and the second annular groove into cooperative alignment in response to being inserted therein.

Air cleaner assemblies, components, and features are described. The features can be used to provide that the air cleaner assembly includes a housing and cover within which primary and secondary filter cartridges, having a media pack and a seal arrangement surrounding the media pack, can be installed. The filter cartridges can include an open end cap with an axially deviating seal arrangement and a plurality of axially extending channels for engaging with ribs on the housing. The filter cartridges can also include extension members extending from the open end cap that include the axially extending channels, entirely or partially. The filter cartridges can also include a guide member extending from the extension members for providing a low friction surface against the housing during installation that allows axial force exerted by the installer to be translated into a rotational force that rotates the filter cartridge during installation.

An air cleaner comprising: a) a housing b) a cover; c) a filter element within the housing; wherein the surrounding housing-wall defines a pair of opposing receiving V-shaped grooves; wherein the filter element comprises first and second protrusions extending from opposing sides of the filter element and arranged along a common axis; the protrusions being adapted and arranged within the receiving grooves such that the filter element can be rocked about a pivot axis defined by pivot points of the first and second protrusions within the housing pivot the filter element into sealing engagement with the housing; and wherein the protrusions comprise a generally L-shaped cross-section comprising a first leg and a second leg, connected by an elbow connection portion, the elbow connection portion being arranged and adapted to serve as the pivot point for the filter element in the housing.

A laundry treating apparatus includes a cabinet, a door, a drum, a driver that is accommodated inside the cabinet and rotates the drum, a circulating duct that circulates air discharged from the drum and re-supplies the air to the drum, a heat supplier including one or more heat exchangers that are installed inside the circulating duct, a mounting portion defined to allow the inlet and the circulating duct to be in communication with each other to guide air inside the drum to the circulating duct, and a filter seated in the mounting portion to filter foreign substances introduced into the circulating duct. A door glass protrudes toward the drum and has a pressurizing inclined surface at a protruding lower portion thereof, and the filter includes a pressurized portion in contact with the pressurizing inclined surface as the door is closed to pressurize the filter toward the mounting portion.

A mounting device including a fixed seat, a mounting seat, and a plurality of quick-assembling assemblies. The mounting seat includes a mounting portion, and a plurality of support portions spaced apart from each other in a circumferential direction of the mounting portion and connected to the mounting portion. A mounting space is defined by the mounting portion and the plurality of support portions, and the filter element is mountable within the mounting space. The plurality of quick-assembling assemblies is in one-to-one correspondence to the plurality of support portions. Each of the plurality of the quick-assembling assemblies has one end connected to the corresponding support portion and another end connected to the fixed seat. The filter element is quickly fastened onto the fixed seat by means of the quick-assembling assemblies, which facilitates mounting and dismounting of the filter element.

Implementations disclosed herein provide a compact and easy to maintain downdraft table for use in facilities with limited floor space that includes a unique filter compartment and exhaust fan assembly located beneath a perforated work surface. The filter compartment may include at least one rectangular filter insert that is removably held in place using a scissor mechanism clamping assembly. The scissor mechanism clamping assembly allows an operator to easily apply a distributed force on the rectangular filter insert to press the filter insert against a filter seat and lock the filter insert in that position. The scissor mechanism clamping assembly further allows the operator to easily release the distributed force from the rectangular filter insert to unseat the filter insert from the filter seat and remove the filter insert from the filter compartment for cleaning or replacement.