I bought Clarifion, installed them, and my allergies, which had been under control with the use of Claritin, returned even though I was continuing to take Claritin. I unplugged the Clarifion and my allergies went away. I found articles linking ionizers to allergic reactions. I told the company that I wanted to return my Clarifion. They said I could return them but I had to pay for the return postage and they would charge me a 15% restocking fee!
So buyer beware!
Length of Use: Less than 3 months
Bottom Line: No, I would not recommend this to a friend