I bought this as sometimes there are a mosquito or two that entire my room from the window during evening. When I see a mosquito or get bit by one, I simply, close the door and window and start this.
I guess normal mode is ok, but I use active mode cause its faster. After 2-3 mins, the entire room smells with good knight and its horrible.
I need to off it, and open the door to get rid of the smell, its very suffocating. I dont know if mosquitos died when the door was closed or went out while door was open. I couldnt trace the mosquito hence I used this.