An air handling apparatus is provided. The air handling apparatus can include a shell, a filter plate, a filter chamber, and a filter. The shell is provided with a hole. The filter plate is connected to the shell through a first connecting member and configured to cover the hole. The filter chamber is arranged in the shell and communicated with the hole. The filter is inserted in the filter chamber through the hole. A cross-sectional size of the filter is less than or equal to a cross-sectional size of the hole.

The present description provides a filter element that includes an end or side portion attached breather tube. One exemplary filter element described herein includes filter media having front and rear walls each including a proximal end and a distal end, a side portion at the proximal ends of the front and rear walls, and an outlet. The filter element further includes a breather tube attached to the filter media in fluid communication with the outlet. The outlet is positioned at least partially on the side portion, and the front and rear walls of the filter media are joined together at least partially along a perimeter.

An air filter media (10) including a pleated fibrous filtration web (8) with a first major side (2) that includes at least one sorbent-loaded area (26) in which sorbent particles (14) are present on a first major surface (25) of the pleated fibrous filtration web (8), at least some of the sorbent particles (14) being post-pleat-deposited sorbent particles.

This document presents an apparatus for a flexible air filter media that can be configured for shipping and storage having one or more flexible inserts mounted to the filter media along one or more portions of the accordion folds of the air filter material. The current invention permits the air filter apparatus to fold along both X and Y axes, create a tri-fold, and bend in a manner that provides for a much smaller volume for shipping purposes. The invention also permits attaching the flexible material to the center of the filter media and also inserts which allow sections of the air filter media to be nested one into another to reduce both shipping and storage volume.

A method of making a filter cap by die stamping a composite sheet to form the filter cap where the composite sheet includes: a sheet metal layer having a planar surface; and a heat liquefiable adhesive that is adhered to the planar surface of the sheet metal layer and is solid at room temperature.

A system for forming a hollow modular candle filter includes: a first filter portion having at least one open end; a hollow second filter portion having at least one open end; a sleeve configured to fit within the open end of the first filter portion and the open end of the second filter portion; and an adhesive configured to bind the sleeve to each of the first filter portion and the second filter portion.

A system for forming a hollow modular candle filter includes: a first filter portion having at least one open end; a hollow second filter portion having at least one open end; a sleeve configured to fit within the open end of the first filter portion and the open end of the second filter portion; and an adhesive configured to bind the sleeve to each of the first filter portion and the second filter portion.

Filter elements and methods of manufacturing filter elements are provided. Examples of filter elements include a media pack and a frame attached thereto. In one example, the frame includes a side panel that is or includes a foldable portion. The foldable portion is folded away from the media pack and an adhesive is located therebetween during assembly. In other examples, a media support member is provided that includes at least one side support panel that supports a side of the media pack. A portion of the side support member is positioned between adjacent pleat panels of the media pack.

Provided is a filter assembly including: a first filter medium (110) that is bent so that high-point portions (111) and low-point portions (113) defined based on a vertical plane with respect to a first direction are alternately and repeatedly formed in a second direction perpendicular to the first direction; a first filter frame (130) configured to accommodate the first filter medium (110) and to fix an edge side of the first filter medium (110); a second filter medium (120) that is bent so that the low-point portions (121) and the high-point portions (123) defined based on the vertical plane with respect to the first direction are alternately and repeatedly formed in the second direction; and a second filter frame (140) configured to accommodate the second filter medium (120) and to fix an edge side of the second filter medium (120), wherein at least a portion of the high-point portions repeatedly formed in the first filter medium (110) have different heights from those of the other high-point portions, and at least a portion of the low-point portions repeatedly formed in the second filter medium (120) have different heights from those of the other low-point portions, and the first and second filter media (110, 120) are bent in such a way that a first filter medium high-point envelope (111a) connecting high points of the first filter medium (110) and a second filter medium low-point envelope (121a) connecting low points of the second filter medium (120) correspond to each other when viewed from a cross-section including the first direction and the second direction, and the first and second filter frames (130, 140) are combined with each other so that the first filter medium high-point envelope (111a) and the second filter medium low-point envelope (121a) face each other.

A filter assembly includes a body of filter media, a seal, and a compression ring. The body of filter media having a first end surface, a second end surface spaced apart from and opposing the first end surface, and an outer surface extending between the first end surface and the second end surface. The seal surrounds the first end surface. The compression ring is disposed about the second end surface. The compression ring includes a first channel configured to allow fluid communication between the second end surface and the outer surface.