The Tennessee Chill Box 8000 (CB8000) is an Air Conditioned Respirator, Fresh Air Supply System, which provides comfortable, safe breathing air for industry users who require a fresh air supply system, with the advantages of air-conditioned air. It can maximize productivity and eliminate the possibility of heat stroke, heat exhaustion, dehydration, nausea and cramps for your workers. The CB8000 Improves the worker’s safety and comfort, reducing their frequency and duration of breaks on the job.