This is a fear of mine and I always tell people to let me know if they smell anything. I have wood flooring throughout the whole house and laminate wood looking floor in the kitchen. I probably mop the kitchen (Rocco's main area) twice a week and the other floors at least weekly. The couch is leather so I wipe it down about twice a week as well. The worst is when Rocco has n accident in his crate and stinks like pee afterward. I never want him going on anyfurniure until he's been cleaned of that lol. I say clean floors and couches often, use air fresheners/febreeze, and keep your guys squeaky clean like you've been doing!