how do you guys handle the smell?

so i have two females who smell, but not uncontrollably, but then i got a male and omg he stinks. it doesn’t really seem to matter how much cleaning i do, he’s always smelling. i may be in my 20’s, but i’m still hiding pets from my parents lol and he is making it a bit too obvious. i keep my oil defuser on in my room but it can only do so much😭 and i’m pretty opposed to chemicals for the health of my animals, so i don’t like to light candles or use hard cleaners. i use a vinegar solution when washing out their cages or cleaning their wheels and stuff