super quiet room air purifyer bought at Target for my esthetics spa when we do manicures but we decided not to offer nails so selling has a high and low option top opens to a metal "filter" for easy cleaning .. no material filter needed so its sooo cost effective!! see video to see that it works perfectly. please note you must have filter in top and tops closed for it to turn on! almost brand new as we had it on a few times at first when we did offer nails sold as gentle used clean From home with dogs not in original box and instructions not included but easy to Google on Target dot com!! item is light and easy to move !!