Yeah, a chamber is usually filled with water, so when you inhale, you're drawing air (smoke) from the bowl through the water and into the chamber. This way the smoke forms bubbles and is filtered by the water.

Also, if you've never made a bong before, be careful which materials you use (as someone else said before). Many household things create toxic fumes when heated. A store bought piece is really the only "safe" thing.
jay42 Reviewed by jay42 on . can someone explain chambers? how do they work? whats an optimal design? i want to build something, but i dont know the science behind the bong. thanks Rating: 5