Do not buy it The on-off button does not work and after pressing it once too many times while trying in vain to switch it off, the button collapsed inside.
Now I am going to return this item to amazon....more info
Wow, this thing works When I first started looking for a car ionizer, I read reviews of some that said they didn't work. I decided to take a chance on this one because the price was so low, I could just toss it if it did nothing. Let me tell you, this this thing works, and then some. Within seconds of plugging it in I could smell the ozone. The smell was so strong that I actually had to crack the window open, which is why I gave it 4 stars instead of 5, it actually works too well!! It is very well designed, it rotates around to fit in just about any position, has an extra socket so you can plug in your cell phone, and has a really cool looking blue power light. ...more info