[This review was collected as part of a promotion.] The air purifier is not the most attractive but it's compact and extremely quiet. The purifier can be placed horizontally or vertically and is perfect for the bedroom, placed on a bookshelf or entertainment console. I can't hear the purifier on the lowest setting but it unfortunately lacks an auto function. I consider this a basic feature for air purifiers, especially at the price point. Those looking for a compact, quiet, and simple air purifier would love this product. I would not recommend this purifier if you're looking to plug and forget.