A stowage device of emergency equipment for aircraft crewmember, the stowage device comprising a housing, the housing extends along a longitudinal direction and has side walls, a back wall and an opening opposite to the back wall, the side walls and the back wall define an internal space adapted to stow a respiratory mask in a stowage position, the side walls extend along the longitudinal direction up to a front edge delimiting the opening. One of the side walls is an adjustable wall. The housing comprises a frame and a movable element. The movable element is mounted on the frame and is movable between a retracted position and a protruding position. The movable element comprises a main movable panel and the adjustable wall includes the main movable panel.

A stowage device of emergency equipment for aircraft crewmember, the stowage device comprising a housing, the housing extends along a longitudinal direction and has side walls, a back wall and an opening opposite to the back wall, the side walls and the back wall define an internal space adapted to stow a respiratory mask in a stowage position, the side walls extend along the longitudinal direction up to a front edge delimiting the opening. One of the side walls is an adjustable wall. The housing comprises a frame and a movable element. The movable element is mounted on the frame and is movable between a retracted position and a protruding position. The movable element comprises a main movable panel and the adjustable wall includes the main movable panel.

A filter assembly for a breathing apparatus, such as a powered air purifying respirator. The filter assembly includes a frame for receiving and retaining a filter element, a cover connected to the frame and dimensioned to cover the aperture, a filter element, and an indicator for indicating when the filter element is retained in the filter frame and the cover is arranged across the aperture. A powered breathing apparatus including the filter assembly is also disclosed.

A respirator fit-check apparatus has an air pressure sensor adapted, in use, to sense the air pressure within a sealed interior volume of a close-fitting respirator; an indicator adapted, in use, to indicate instructions and test results to a wearer of the respirator; and a CPU, the apparatus being configured to monitor the air pressure within the respirator and to determine and indicate whether or not the respirator seals to the face of a wearer based on a vacuum decay over a specified period of time. The apparatus may also be configured to monitor the breathing depth and/or rate of the wearer subsequent to a fit-check determination.

A respirator fit-check apparatus has an air pressure sensor adapted, in use, to sense the air pressure within a sealed interior volume of a close-fitting respirator; an indicator adapted, in use, to indicate instructions and test results to a wearer of the respirator; and a CPU, the apparatus being configured to monitor the air pressure within the respirator and to determine and indicate whether or not the respirator seals to the face of a wearer based on a vacuum decay over a specified period of time. The apparatus may also be configured to monitor the breathing depth and/or rate of the wearer subsequent to a fit-check determination.

A mask apparatus includes a mask body, a pair of hook mounting portions at side ends of the mask body, a seal coupled to a rear surface of the mask body, and a pair of ear hook portions connected to the hook mounting portions. Each hook mounting portion includes an upper hook mounting portion, a lower hook mounting portion below the upper hook mounting portion, a hook pin at each of the upper hook mounting portion and the lower hook mounting portion, and a through-hole defined in each of the upper hook mounting portion and the lower hook mounting portion. Each ear hook portion includes a strap portion, a first hook portion connecting the strap portion to one of the upper and lower hook mounting portions, and a second hook portion connecting the strap portion to the other of the upper and lower hook mounting portions.

A mask apparatus includes a mask body, a pair of hook mounting portions at side ends of the mask body, a seal coupled to a rear surface of the mask body, and a pair of ear hook portions connected to the hook mounting portions. Each hook mounting portion includes an upper hook mounting portion, a lower hook mounting portion below the upper hook mounting portion, a hook pin at each of the upper hook mounting portion and the lower hook mounting portion, and a through-hole defined in each of the upper hook mounting portion and the lower hook mounting portion. Each ear hook portion includes a strap portion, a first hook portion connecting the strap portion to one of the upper and lower hook mounting portions, and a second hook portion connecting the strap portion to the other of the upper and lower hook mounting portions.

The present invention is a particulate filter face mask with replaceable filter element, the filter element being inexpensive, easily replaceable and securely held within the mask when installed.

The present invention is a particulate filter face mask with replaceable filter element, the filter element being inexpensive, easily replaceable and securely held within the mask when installed.

A nasal mask is provided, including: a cover body, at least a part thereof made of a material having air-penetrating and air-filtering characteristics, the cover body having first and second faces which are convex and concave, the nose being received in a space defined by the second face, a periphery of the cover body defining a datum face, the cover body having a nose tip portion, a top portion and two nose wing portions, the nose tip portion located between the two nose wing portions, the top portion and the two nose wing portions being near the periphery of the cover body; a framework, fixedly connected with and along the periphery of the cover body, the framework having shape-retention characteristic to retain the cover body in a specific shaped into which the cover body is shaped.