I do not know if this thing is working. It's easy to install, but there's no way to tell if it works. There is a switch on the side for high and low, and a light on the front to show it's on. As I said though, there is no way to tell if it's working. It makes no noise and admits no smell so it's rather safe to use. If I could change a few things about this thing it would be adding different lights for when it senses a bug it turns yellow or something like that.
Update: I do not think it is working. We discovered a spider yesterday in the room that the device is plugged in.
