The thing with dog smell is that people become accustomed to it. When I moved into my current property DP and I couldn't sleep because the carpets smelled so badly like dog. We told our property manager and she owns dogs and she didn't believe us. She sent over two other people, one with dogs, one without - the one without dogs almost dry wretched because the dog smell was so strong. It was unbearable but dog owners had no idea!!
I'm a bit the same with my cat, if I've been home all day and she wees, I can't smell it. But someone else will smell it within a second. Just glad I can get rid of the cat smell, she doesn't tend to leave the smell on furniture and/or carpet (although some who pee outside their litter tray would)