Rebreather adsorbent system

A gas adsorbent rebreather system employing a canister body for holding gas adsorbent material that comprises

• a carbon dioxide gas adsorbent material formed into a sheet that prevents releasing carbon dioxide gas adsorbent particles;
• the sheet being pre-formed into a cartridge for ready installation into the canister body;
• wherein the sheet is arranged in multiple layers and at least one air-flow gap is provided between the layers;
• and
• wherein the cartridge is proportioned to orient the sheet within the canister body so as to direct air flow through at least one air-flow gap to interact with the gas adsorbent material in the sheet.

A rebreather system comprising

• a carbon dioxide adsorbent formed into a sheet;
• the sheet being arranged as a cartridge in multiple layers having multiple air-flow gaps provided between the layers;
• the cartridge being adapted for installation in the rebreather system so as to direct air flow through the air flow gaps essentially parallel to the sheet layers, interacting the carbon dioxide adsorbent material with the air;
• and
• a diffusion panel that is proportioned to redistribute gases flowing through the cartridge.