really not seeing this "AC holds bacteria" thing. its a closed system correct, with gas under pressure? so how does bacteria get in, any crack to allow 1 micro-meter bacteria in is going to let an awful lot of <1 nano-meter gases out. maybe im being simplitic, just doesnt sound right. now in...
i cant see why bacteria etc would get into what is supposed to be a closed system. gas escaping under pressure is one thing but ingress of microbes several orders larger seems unlikely.