Pack One Hitters
Much like the issue with papers, a bowl can stay lit after a hit is finished allowing trails of smoke to spread and stink up the area. The less cannabis smoke in the air, the better.
A good way to keep smells down when smoking bowls, bubblers or bongs is to only pack as much as you can smoke in one hit.
There should be no cherry and nothing but ash left by the time you’re done inhaling.
Exhale directly out of the window to keep the amount of smoke and smell in the room to a minimum.