A method for manufacturing a filter (1) for gas masks includes providing a flat paper and folding the paper into a pleated preform. The filter element (2) is separated from the pleated preform (6) and is inserted into a housing (3). The inserted filter element (2) is connected to the housing (3) at least at some points. This filter elements (2) may have a polygonal outer contour, upon separating the element from the pleated filter preform (6). A foam and/or an adhesive is applied to an outer edge of the filter element (2), arranged on the circumference of the filter element, for an at least partial sealing of an edge (5). This establishes a connection to the housing (3) in at least some sections.

The present invention relates to an exhaust apparatus for releasable or permanent connection to a personal protection respiratory device that defines a filtered air volume adjacent to the face of a wearer and comprises at least one exhalation valve. The exhaust apparatus comprising a powered blower in fluid connection with the at least one exhalation valve, the blower being operable to draw a portion of the wearer's exhaled breath through the at least one exhalation valve. Using such an exhaust apparatus for releasable connection to a personal protection respiratory device improves the comfort and overall experience for respirator wearers who use the respirator for intensive work, and/or for long periods of time, and/or in hot and humid environmental conditions by removing the heat and moisture build-up inside the respirator.

The present invention relates to an exhaust apparatus for releasable or permanent connection to a personal protection respiratory device that defines a filtered air volume adjacent to the face of a wearer and comprises at least one exhalation valve. The exhaust apparatus comprising a powered blower in fluid connection with the at least one exhalation valve, the blower being operable to draw a portion of the wearer's exhaled breath through the at least one exhalation valve. Using such an exhaust apparatus for releasable connection to a personal protection respiratory device improves the comfort and overall experience for respirator wearers who use the respirator for intensive work, and/or for long periods of time, and/or in hot and humid environmental conditions by removing the heat and moisture build-up inside the respirator.

The present invention includes a mask body having a cord attached at three locations on the mask body and a deformable bridge piece. The cord is attached at the middle of an upper edge of the mask body generally aligning with the location of the bridge of the wearer's nose. The cord is further attached at each of two lower positions on the mask body, preferably near or at the bottom corners of the mask body. The cord is further threaded through eyelets located at each of two upper positions on the mask body, preferably near or at the upper corners of the mask body. The deformable bridge piece is located along the upper edge of the mask body, and generally centered on the bridge of the wearer's nose.

A headgear device for a user including an integrated face shield, mask and hood. More specifically, the headgear device includes a hood, a face shield, and a moisture barrier fabric to cover the user's mouth when the headgear device is worn and direct air out through a breathable particle filtration fabric.

A headgear device for a user including an integrated face shield, mask and hood. More specifically, the headgear device includes a hood, a face shield, and a moisture barrier fabric to cover the user's mouth when the headgear device is worn and direct air out through a breathable particle filtration fabric.

A tool, such as a respirator, including a body, an opening defined by the body, a door coupled to the body, and a filter positioned between the body and the filter. The door actuates between open and closed positions. The filter can be removed and replaced when the door is in the open position.

A tool, such as a respirator, including a body, an opening defined by the body, a door coupled to the body, and a filter positioned between the body and the filter. The door actuates between open and closed positions. The filter can be removed and replaced when the door is in the open position.

A face mask assembly includes a face mask is comprised of a particulate filtering material to filter air being breathed by a user. The face mask has a mouth opening extending through the face mask to expose the user's mouth when the face mask is worn to facilitate eating and drinking. A flap is movably coupled to the face mask and the flap is positionable in a closed position having the flap covering the mouth opening to filter air breathed by the user. The flap is positionable in an open position to facilitate the user to eat or drink. A first mating member is coupled to flap and a second mating member is coupled to the face mask. The first mating member is releasably mated to the first mating member when the flap is in the closed position for retaining the flap in the closed position.

A face mask assembly includes a face mask is comprised of a particulate filtering material to filter air being breathed by a user. The face mask has a mouth opening extending through the face mask to expose the user's mouth when the face mask is worn to facilitate eating and drinking. A flap is movably coupled to the face mask and the flap is positionable in a closed position having the flap covering the mouth opening to filter air breathed by the user. The flap is positionable in an open position to facilitate the user to eat or drink. A first mating member is coupled to flap and a second mating member is coupled to the face mask. The first mating member is releasably mated to the first mating member when the flap is in the closed position for retaining the flap in the closed position.