klipsch

All...I've been using this machine at varied levels while in the room, out of the room and anything in between. The output is variable. If I have company or smoke two cigars in an evening instead of my typical one...I'll set the unit on a low level output and let it run overnight for 6-8 hours while I sleep. I don't mean to come across as an ass...but all the articles and manufacturer mumble jumble doesn't equate to personal experience. The unit I'm using works so well...that one of the local B&M's bought the same one after trying mine for one night. Though I personally would have recommended something with higher output for the store. The key is Variable Output. You can even rent it to neighbors to eliminate odor problems they may have. Detail shops typically charge an average of $40 to ozone your car.