it could be, just remember to completely wash out the whole piece with water throughly, you never know what kind of residue they leave behind, especially cause they claim to be able to kill bacteria, so there is some sort of anti-bacteria residue most likely, and you dont really wanna inhale commercial anti-bacterials.
jimmy8778 Reviewed by jimmy8778 on . How to clean my bubbler I just bought a new bubbler and it is FILLED with resin, I need some way to clean it that is not with rubbing alcohol because i cant find any and i need to clean it soon. here is a pic http://img236.imageshack.us/img236/4944/mypipehc0.th.jpg Rating: 5