A magnetized fastening system for applying, over an opening and surrounding fascia of a structure, a covering material including either of a flexible or rigid outer reinforced extending perimeter within which is configured a plurality of receiving apertures. A plurality of rails are adapted to being secured to the fascia in extending fashion proximate the opening, each of the rails exhibiting a three dimensional cross sectional shape with a forwardly projecting support surface within which is configured an outwardly facing narrowed slot for receiving a plurality of fasteners for securing the edges of the covering. A magnetized insert secures together the elongated channels in perimeter defined fashion over the intake opening. This can further include any of the channels being magnetically attracting, the connectors magnetically attracting metal intake surface of the air handling unit, and/or an intermediate applied strip between the rear surfaces of the channels and the intake face (typically non-metallic or non-attracting in this variant), such providing an opposite polar attraction to the magnet contained in the corner L or intermediate, linear T or cross shaped inserts, such as which can include a rare earth magnet contained in a pocket configured on an inside face of the insert.

A vessel for conveying a precursor-containing fluid stream from a precursor material contained within the vessel, the vessel comprising: an interior volume defined by a top, one or more sidewalls, and a base; and at least one fluid outlet for vaporized precursor, and at least one particle barrier that defines at least one particle restricted space within the interior volume, wherein said particle barrier comprises at least one 3-dimensional filter. A method for using the apparatus is also disclosed.

An air filter assembly includes a filter element having at least one variable dimension, and a frame for engaging and supporting the filter element. The frame may include a plurality of linear segments forming a rectangular configuration, and a plurality of clips for connecting the linear segments together at corners thereof. The linear segments may be L-channel segments, C-channel segments, or may be of other form. Clips may be used for connecting the linear segments together at the corners. The filter element may have a pattern of creases or fold lines to facilitate folding thereof from an expanded configuration to a reduced configuration. A grate may be included for spanning an area bounded by the frame to support the filter element. The grate may have multiple arms and a central hub. An edge treatment may form a seal between the filter element and the frame.

A solid pet waste vacuum and bagging device is described. The device is equipped with a canister, collection chute, vacuum motor, and a bag cartridge. The device eliminates the need for an individual to come into any contact with pet waste, including the temperature and the smell conventionally known to emanate from pet waste. The device employs the vacuum motor to collect pet waste within the bag via the collection chute. The collection chute is lined with a plastic bag, which is sealed and released from the collection chute within the canister upon activation of a dispose button by the user. The device is powered by rechargeable batteries, and may be equipped with a charging cradle to maintain a fully charged battery.

An air filter includes a filter body configured to trap dust contained in air passing therethrough and a holding frame configured to surround an end edge of the filter body, and the holding frame is formed of a resilient material. The holding frame includes a first surface on a proximal end side in a direction of travel of air passing through the filter body, and a second surface on a distal end side in the direction of travel, and one of the first surface and the second surface is provided with a projecting portion.

The gas measurement device includes a filter having a plurality of openings, each opening being variable in size, an adjustment mechanism configured to vary size of the plurality of openings, a first gas sensor configured to detect gas molecules passing through an opening of the filter and output a first measurement value corresponding to the detected gas molecules, and a second gas sensor configured to detect the gas molecules passing through the opening of the filter, output a second measurement value corresponding to the detected gas molecules, and detect gas molecules of a gas species different from the gas molecules detected by the second gas sensor.

A filtering device, including: a filter layer, where the filter layer is enclosed into a cylindrical structure; a support frame includes at least one support ring arranged at the end of the cylindrical structure, the support ring is provided with a plurality of elastic connection portions and a plurality of support ring segments, and two adjacent support ring segments are connected by using one elastic connection portion; the elastic connection portion is capable of being elastically deformed when subjected to an external force and capable of restoring by using its own elastic force; when the elastic connection portion is elastically deformed, an angle at which the end portions of the two adjacent support ring segments are connected changes, which drives a shape of the filter layer to change synchronously; when the elastic connection portion restores, the angle changes, which drives the filter layer to restore to an original shape.

The present disclosure relates to A filter assembly for an air conditioner including: a frame including a plurality of main members forming a plurality of sides and a plurality of corner members connecting a pair of main members by variably adjusting an interval between the pair of main members adjacent to each other, forming an air flow port through which air passes, and being detachably installed at an intake port or an exhaust port of a duct connected to the air conditioner; a detachable unit for detaching the plurality of main members and the plurality of corner members; and an air conditioner filter forming a plurality of filtering holes and being stretchably provided in the frame, including a unit cross-sectional area of the plurality of filtering holes that are variable depending on variable adjustment of the frame, and filtering air passing through the air flow port.

A foldable and disposable air filter media for insertion into an air filter frame is disclosed. The air filter media includes two or more filter pleated strips that are joined together. The outer edges of the air filter media are fixed to the frame to form the air filter. Each of the filter pleated strips have a number of pleats that increase the area to reduce pressure drop across the filter media while allowing air flow through to remove unwanted particles from the filtered air. A folding crease is formed between the opposite border edges of the air filter media allowing the air filter media to be folded for shipping or disposal.

A foldable and disposable air filter media for insertion into an air filter frame is disclosed. The air filter media includes two or more filter pleated strips that are joined together. The outer edges of the air filter media are fixed to the frame to form the air filter. Each of the filter pleated strips have a number of pleats that increase the area to reduce pressure drop across the filter media while allowing air flow through to remove unwanted particles from the filtered air. A folding crease is formed between the opposite border edges of the air filter media allowing the air filter media to be folded for shipping or disposal.