I used this on a path in my bedroom. Honestly,I thought it might be hopeless, especially right in front of the bathroom door. My Molly had taken to peeing there. I'm on my own and my bed is a big four poster or I would have had the carpet replaced.This little powerhouse did a wonderful job. In fact I bragged about it so much my sister ordered one earlier this afternoon. We are both older and the big machines are too heavy. I don't mind taking care of the tanks because it is so manageable.