Re: More questions for you Ozoneman.

Hi Cyane
My favorite is the model 308, the 175 dollar one because it is also an ionizer and has a little more ozone output than the 150 dollar one. Either one will run 24/7 and either one will be great for your bedroom. The 150 dollar one has a built-in cycle timer which turns the unit on and off on various cycles, but does not have fully adjustable ozone output.The 175 one is fully adjustable ozone output. Both will work well in the car as well. Both come with car adaptors. I feel that the 175 one is more adaptable to various situations.
hope this helps
Paul