Personal safety system

A carbon dioxide absorber for a personal safety system including a refuge chamber, the carbon dioxide absorber comprising:

• a body comprising a body opening;
• and
• a basket detachably inserted into the body for receiving loose soda lime, said basket comprising a basket interior space and an outer surface, said outer surface comprising a plurality of openings, said basket interior space being in communication with said body opening and an environment external to said basket via at least said plurality of openings;
• a CO2 cooling system;
• and
• a connection pipe connected to the body and connected to the CO2 cooling system.

A personal safety system in the form of a refuge chamber, the personal safety system comprising:

• at least one main room comprising a main room space;
• a carbon dioxide absorber for absorbing carbon dioxide out of the ambient air of the main room, the carbon dioxide absorber comprising a body and a basket with a basket interior space and openings for passage of ambient air therethrough and with a basket structure for receiving and supporting loose soda lime, the basket being supported in a position in the body through which the ambient air flows, said basket comprising an outer surface, said outer surface defining at least a portion of each of said openings, said body comprising a body opening, wherein said openings are in fluid communication with said basket interior space, said main room space and said body opening;
• and
• a CO2 cooling system located in the main room of the refuge chamber functioning as the personal safety system, wherein the carbon dioxide absorber further comprises a connection pipe connecting the carbon dioxide absorber with ambient air that has been cooled by the CO2 cooling system.