A/C lol. not no but hell no. they do however have a recirculating system for NBC attacks that blows air thru it. kinda fan but the air is the same temp as outside air. it does help tho when you stick the end of the hose into you shirt or pants and turn it on. the hose conects to the canister on the protective mask to help cool you down. but as far as bein refrigirated no. the heaters are also junk.