Patent ID: 7958888

Claim:
A system for circulating air, comprising: a non-divided bladder; a mask operable to be worn on the face of an individual, the mask having a breathing tube extending therefrom; a T-junction coupling having a first T-junction branch, a second T-junction branch, and a third T-junction branch, the first T-junction branch being connected to the breathing tube extending from the mask, the second T-junction branch being connected to an air intake tube, the second T-junction branch having a first one-way valve therein, the first one-way valve being configured to allow air to enter the T-junction coupling, the third T-junction branch being connected to a bladder intake coupling, the bladder intake coupling opening into the bladder, the third T-junction branch having a second one-way valve therein, the second one-way valve being configured to allow air to exit the T-junction coupling; a bladder outlet coupling opening from the bladder; a tent having a tent wall; and a tent exhaust tube extending through the tent wall, the tent exhaust tube being coupled to the bladder outlet coupling so that air exiting the bladder is directed outside of the tent via the tent exhaust tube.