I remember when I was in high school, I liked peeing my pants while sitting in my chair but eventually my chair started smelling a lot like pee so then I googled how to get rid of the pee smell but the stuff relevant was only for dogs peeing on the couch. They said to wash the couch with vinegar so I did that to my chair. My chair smelled like vinegar for about 3 days but after the smell went away, it didn't smell like pee or vinegar anymore.