Review on Air Choice True HEPA Filter Air Purifier: Removes 99.97% of Dust, Smoke, Odor, and Pet Dander - Ozone Free, Portable and Whisper-Quiet (25dB) for Allergy Relief by Jessica Wright

I ordered his product because of an allergy (animal, indoor, outdoor). Sometimes I'll stay at a friend's house with cats and she smokes, or I'll sit with the dog for a family friend. I love how small and light the air purifier is. I will have no problem taking it when I spend the night. I turned it off in my bedroom because I'm very sensitive to noise when I sleep. The low setting is suitable for the night. During the day when it's low it doesn't bother my cats and they sleep less than a foot from it. I'm fine with medium to high noise when I really need it, but I don't think I can sleep with it at high power. The main reason I chose this product over others is that replacement filters cost around $20. I was looking for a cheaper air purifier with good customer reviews, but the replacement filters were $30-$40.