whatsmells
Member
Figure out how the smell/smoke is getting to them in the first place. Smoke can't go through a sealed wall or floor. So unless you share a return air hvac duct with them or your bathroom exhaust fan is tied into theirs and back feeding into their bathroom the only way they could smell it is if the windows are open. You say you keep the air circulating so that could be your problem. A 6" grow fan with a charcoal filter would be your best bet sucking in clean air and exhausting out a different window with that filter. It sucks that you would have to go through that just so you can enjoy what is your god to do.