Product review (5 stars): Great Product - Great Results
We have three ultrasonic/vaporizers that run 24/7.  I treat each one weekly with BestAir-6 Ultra. People who use hard tap water don't know what they're missing. I only clean the surface areas about once every three months on all our units, and they're really not dirty at all compared to the pink or black gunk that they had before I found this product. The Ultra Treat does just what it claims to do - and more.