Here's a silly question, I just got a new bowl for my binger with a built in glass screen that keeps my h2o in said bong super clean. I love it, air flow is awesome, everything burns completley, and like I said it keeps my h2o nice and clean. Here is my question? Does the ash that builds up in the bowl act as a "carbon filter" considering that it is a processed carbon life form. This seems like a goofy question but I'm curious.