Abstract: The chemical cartridge of a breathing apparatus, through which respiratory air flows to generate oxygen is divided into a plurality of air treatment chambers by retaining grids. An impact-damping member including a multilayer fine wire mesh, which abuts flat against the relevant cover is located in the external air treatment chambers while provided in the middle air treatment chambers is a damping element including a multilayer fine-wire mesh folded in a zigzag fashion, having folded edges running parallel and at a distance from the outer wall of the chemical cartridge, one edge thereof running in a zigzag fashion is fixed to a wire grid. The damping elements of the adjacent air treatment chambers are not in alignment. Potassium hyperoxide granules for oxygen generation are located in the air treatment chambers. One air treatment chamber can be filled with lithium hydroxide tablets for binding excess carbon dioxide.

Abstract: The first step of a method for manufacturing polymer-bonded filter bodies is to produce a mixture of a sorptive agent, a liquid, and a polymer. This mixture is then pressed into a filter body by being placed in a compression mold and simultaneously applying a hot gas to it. The evaporation temperature of the liquid is lower than the melting temperature of the polymer while the temperature of the hot gas flowing through the mixture exceeds the evaporation temperature of the liquid. This inexpensive method can provide homogeneously structured high-performance filter bodies.

Abstract: The first step of a method for manufacturing polymer-bonded filter bodies is to produce a mixture of a sorptive agent, a liquid, and a polymer. This mixture is then pressed into a filter body by being placed in a compression mold and simultaneously applying a hot gas to it. The evaporation temperature of the liquid is lower than the melting temperature of the polymer while the temperature of the hot gas flowing through the mixture exceeds the evaporation temperature of the liquid. This inexpensive method can provide homogeneously structured high-performance filter bodies.

Abstract: A chemical cartridge for respirators for respirators, the cartridge containing a chemical, e.g., potassium hyperoxide, which when acted upon by carbon dioxide and moisture, produces oxygen from a stream of inhaled air. Two discharge nozzles are provided which project into the chemical and out of which the regenerated exhaled air flows. The incoming flow occurs over a large area and the outflow occurs over a small area with the peripheral surfaces of the discharge nozzles being spaced substantially equidistant from an inlet surface of the chemical, thereby ensuring optimum use of the chemical for oxygen production purposes because a user's exhaled air is caused to flow completely through the entire space occupied by the chemical.