Made for a large room or for a smaller apartment. This air purifier is made by Blue Air-a respectable swedish company. I’ve had it for about a year but only used it thirty days. Comes with remote control. It uses a filter of the highest standard as well as ionizing technology. It’s super quiet and takes care of anything as long as the window is closed and you’re not a chain smoker. I can really tell a difference in winter and some summer days when thit hasn’t rained in a while. Originally, 7000rmb (I have the receipt). I’ll take 3500 or best, quickest offer. There’s no reason to keep it sitting around. My wechat is newsie. Also, you can message me at 15882129434.