I have 2 3 head foggers in storage. 1 is corrosion coated. Quality ultrasonic misters are not cheap. I used a 12v dc computer fan wit ha 120v ac/dc conversion adapter. Never use RO water with these. The auto shut off wont work it senses heavy metals or EC in the water to operate. RO is 0..These are cheap on ebay. They work well boosting the RH suck at cloning cuts. I would never buy the Chinese versions especially the kind with lights on them..