This Review Title is Almost better than nothing and the content is: I bought 2 of these so it cost me $32 but they aren't what they are advertised. The filter isn't a layered filter PM2.5. I got 9 circular see through pieces of having paper that look kind of like a screen.There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.