This air purifier is by far the best that I’ve used. Not to mention it’s sleek and it doesn’t take away from my living room decor. I have noticed a big change in the freshness of my home and also the air give a crisp clean feel. The quality of this unit is outstanding. It definitely works pollens out and there’s a lot less sneezing in my home die to allergies. The settings and levels of purification is my favorite. It also has a timer that’s a bonus. I love it! I highly recommend if you suffer from allergies. Even if you don’t it’s great to have you’ll breath the purest air.