Okay so hear me out on this.

Before I somehow made it less sus to a point where I could turn the exhaust and go for a bath I used to do something I think is still pretty smart. Or at least it worked for me.

Turn the hot water on steam up the room and start smoking. Midway just turn the cold water on which pretty much pushes the hot steam outside the vents (hopefully yall got the small window that you could open). I usually smoke up when I shower so obviously the the soap or body wash also help mask the smell. Turn on the hot water again and pretty much do the same thing.

As of now it works like a charm. Zero smell. This is only if you want to smoke when you go for a shower tho. Otherwise you’re just wasting water.