It's a diffuse sort of doggy smell, not from fluids I think - there was also an African Grey Parrot in the living room, but I don't think that's it. I suspect there's a general hanging around in the carpet (not old enough to demand instant replacement) of it. As I went in, there was an electric air freshener plugged in in the hall, but upstairs in the living room the smell hung around. Further upstairs there was a disinfectant smell. I'm getting some old fashioned wick type fresheners for the moment, but I suspect I'll need a professional carpet cleaning.