yea that's what it is....AND IT'S JUSTT CALLED A LUNG! in any case why are so many potheads always trying to think of ways to re-use the smoke? i mean...is it that precious? after is exhaled atleast?
slipknotpsycho Reviewed by slipknotpsycho on . Gravity Bongs: Reusable Smoke? I just tried a gravity bong and it's now definitely my favourite smoking device. The equivalent of half a joint is all I needed. In any event, after taking a hit I wondered: "If I exhaled back into the bottle could I keep doing that and reuse the hit? I figured this was too good an idea to work, so what's the problem with it? I guessed either Carbon Dioxide buildup or loss of smoke potency after the first hit. Rating: 5