 thousands of five-star reviews it works very very well we've got three of these in my house i'm telling i'm here to tell you it works very well we know where they are because it smells like a thunderstorm has rolled through the house that room and it smells fresh and clean it smells incredible any smell is going to vanish after a few seconds with it being plugged in you plug it into the outlet doesn't take up space on the floor no big long cords or wires to jump over you don't replace the uh the air filters either that saves you a bunch of money too