Review on Bionaire True HEPA Air Purifier: Advanced 3-Stage Filtration System for Allergies & Pets, Quiet Settings, Medium Room, White by Jenny Mendez

For what I paid for it when it was on sale it's a decent unit. At the regular price I would skip this as it is disposable at the moment as you can't get replacement filters. It also filters well, but even at low settings it has a constant hum. Don't break the deal and it's not terrible, but it's noticeable when trying to sleep.