Exposure chamber for animals at changed atmospheric conditions

An airtight exposure chamber is described in which mice can be kept continuously in an atmosphere with a high carbon dioxide percentage, or with a low or high oxygen percentage. Advantages of the apparatus described are the absence of moving parts inside the chamber and, in the experiments with a low or high percentage of oxygen, the absorption of carbon dioxide and water outside the chamber, permitting the continuous treatment of the animals. animal exposure chamber; carbon dioxide exposure; oxygen exposure Submitted on January 4, 1963