Clean Air!!!
I love this.  It is not very loud, but I love feeling like I am breathing good air.  It is also very nice looking, which is a great incentive to continue to use the product!  I originally got this because my roommate was sick and I was afraid of catching it.  However, I am continuing to use it, and I really like know I am breathing clean air all the time!.  Thank you,
Rating: 5 stars