 frying odors, musty odors. It wipes out those odors. I've stayed in hotel rooms that had fireplaces in them and the hotel used them in the room to get rid of the smoky odor. It just, they work. They really do work. I travel with one. I've got one in this hotel. Haven't had to use it. It's a great hotel, but I've used them in rental cars before. Had to plug them into the USB outlet in the car to get rid of someone had smoked in the car. They just work. You can get three of them for less than $200 and save $200 at EdenPureDeals.com. Eden like the garden of Eden. Pure as the driven snow.