I now have the x8 x5 and v5 and I love each of them. The air quality in my house and car now are incredible. There’s never any bad smells any more and the air just feels cleaner. Any smoke from cooking or exhaust smells are eliminated promptly. Cleaning the filtering plates is a breeze and I love not having to buy new filters all the time. It makes me feel a lot better about my investment. I highly highly recommend this Airdog technology and their products!