Maybe: The water may cool and filter particulates that could injure the lungs. The pipe may have metal screen or body which could vaporize metals when heated. The joint paper adds residue to the particulates that you inhale. To my knowledge there is no evidence. It's not something the gets funding to study! lol.
Answered 10/22/2012
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A doctor has provided 1 answer
A doctor has provided 1 answer
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