My main problem with this technology is the fact that it will probably grow up nasty stuff on the machines pretty much on a daily basis. Specially if you need an humidifier. It just takes one night and mold and stuff starts growing even if you still can't see the particles.
My question is, how does one keep this at bay? wouldn't it need a daily treatment to really guarantee on stuff is in there on each usage? this would be pretty annoying but the only way to guarantee it's clean, and how do you even clean it? If you used a cleaning product or UV, it could also leave irritants.. it's just not clear to me the whole thing. I need to know this to get started because there's no position were my air pathway wouldn't be blocked, but I also don't want to introduce a new problem by breathing in mold or other stuff used to clean it.