It's a curiosity. When it was delivered, the inside was broken and I couldn't install any accessories at all, so I had to use it like this. It works fine, but every time I use it, even though I point the spray bottle at the bedding, water droplets will spray on myself. I got angry and threw it on the bed. I didn't use much force and it all spilled onto the bed. Oh my god, this thing smells okay, but I don't know if it really kills mites.