I have two zontec model PA 600 ozone generators these units have programmable timers and adjustable ozone output 1-600 mil per hour they work great for removing smells from any space without chemicals one unit will handle A large boat they are in like new condition and I will sell them for 300.00 ea. Brian (941) 723 0201) _trainma484848@aol.com_ (mailto:trainma484848@aol.com)