An assembly is disclosed, the assembly for providing release structure to a lanyard or strap adapted to be worn on the body, such as a neck strap. The release structure consists of a snap button assembly configured such that the release pull generated by tension in the strap is directed along an axis perpendicular to the closure and rotation plane of the male and female portion of the snap button assemblies. With structure to configure a release pull in such an axis, a safety feature is provided to the wearer such that tension in the strap, when it reaches a sufficient force to overcome the closure forces of the snap button assembly, will release the closed snap button and allow the strap to fall away from the body. Also, as in the case of a firefighter wearing an SCBA fire mask, it prevents the firefighter from being entangled or tethered if the strap were to get accidentally hooked or caught on something. The breakaway will allow the firefighter to continue using the mask with no interruption of breathing air from the mask. In lanyards and tool holders, those fall away from the body. In the case of a firefighter, the mask does not fall away from the body.

An assembly is disclosed, the assembly for providing release structure to a lanyard or strap adapted to be worn on the body, such as a neck strap. The release structure consists of a snap button assembly configured such that the release pull generated by tension in the strap is directed along an axis perpendicular to the closure and rotation plane of the male and female portion of the snap button assemblies. With structure to configure a release pull in such an axis, a safety feature is provided to the wearer such that tension in the strap, when it reaches a sufficient force to overcome the closure forces of the snap button assembly, will release the closed snap button and allow the strap to fall away from the body. Also, as in the case of a firefighter wearing an SCBA fire mask, it prevents the firefighter from being entangled or tethered if the strap were to get accidentally hooked or caught on something. The breakaway will allow the firefighter to continue using the mask with no interruption of breathing air from the mask. In lanyards and tool holders, those fall away from the body. In the case of a firefighter, the mask does not fall away from the body.

Disclosed is a chemical oxygen self-rescue device, including a breathing assembly (1), an oxygen generating assembly (2) and a gas bag; (3) the oxygen generating assembly includes an oxygen generating agent tank (21), a gas discharge valve (23) and an oxygen candle (22); the gas discharge valve is arranged on a component above an oxygen generating agent (213) in the oxygen generating agent tank and below a breathing end of the breathing assembly, and the opening and closing of the gas discharge valve are controlled by means of an inflated volume of the gas bag. The chemical oxygen self-rescue device reduces the resistance to breathing, lowers the temperature of breathed gas and improves the utilization rate of the oxygen generating agent.

Disclosed is a chemical oxygen self-rescue device, including a breathing assembly (1), an oxygen generating assembly (2) and a gas bag; (3) the oxygen generating assembly includes an oxygen generating agent tank (21), a gas discharge valve (23) and an oxygen candle (22); the gas discharge valve is arranged on a component above an oxygen generating agent (213) in the oxygen generating agent tank and below a breathing end of the breathing assembly, and the opening and closing of the gas discharge valve are controlled by means of an inflated volume of the gas bag. The chemical oxygen self-rescue device reduces the resistance to breathing, lowers the temperature of breathed gas and improves the utilization rate of the oxygen generating agent.

The present invention corresponds to a full-face respiratory mask that prevents the entry and exit of particles during the breathing process. The mask has a hermetic seal against the skin that does not allow particles found in the environment to pass through and a single opening that is also hermetically sealed, this opening is coupled with the outer filter and is where the filtered air enters and exits.

The present invention corresponds to a full-face respiratory mask that prevents the entry and exit of particles during the breathing process. The mask has a hermetic seal against the skin that does not allow particles found in the environment to pass through and a single opening that is also hermetically sealed, this opening is coupled with the outer filter and is where the filtered air enters and exits.

An SCBA frame for mounting self-contained breathing apparatus bottle vertically such that the frame can articulate with the back of a user, comprising an upper plate, intermediate plate and a lower plate each connected by attachment mechanisms. Each of the plates may comprise a top edge, a bottom edge, and a pair of sides. A first coupling mechanism coupled to the bottom edge of the upper plate and a top edge of the intermediate plate and a second coupling mechanism coupled to the bottom edge of the intermediate plate and the top edge of the lower plate. The first and second coupling mechanisms allow the upper plate, intermediate plate, and lower plate to move about the horizontal axis and torsionally in line with the user's movement. The first and second coupling mechanism comprises a pair of attachment mechanisms located proximate the sides of the upper plate and intermediate plate.

An SCBA frame for mounting self-contained breathing apparatus bottle vertically such that the frame can articulate with the back of a user, comprising an upper plate, intermediate plate and a lower plate each connected by attachment mechanisms. Each of the plates may comprise a top edge, a bottom edge, and a pair of sides. A first coupling mechanism coupled to the bottom edge of the upper plate and a top edge of the intermediate plate and a second coupling mechanism coupled to the bottom edge of the intermediate plate and the top edge of the lower plate. The first and second coupling mechanisms allow the upper plate, intermediate plate, and lower plate to move about the horizontal axis and torsionally in line with the user's movement. The first and second coupling mechanism comprises a pair of attachment mechanisms located proximate the sides of the upper plate and intermediate plate.

The wearable mask of the present invention has been developed such that a chin rest and string parts hung over the ears are made of silicone so that the movement of the face and the body is free, the mask is not shaken or separated, and there is no pain in the ears despite long-time use. The mask of the present invention is economical, has excellent marketability, and is advantageous for mass production.

The wearable mask of the present invention has been developed such that a chin rest and string parts hung over the ears are made of silicone so that the movement of the face and the body is free, the mask is not shaken or separated, and there is no pain in the ears despite long-time use. The mask of the present invention is economical, has excellent marketability, and is advantageous for mass production.