Been thinking about the health differences between smoking flowers and vaporizing extracts in a bong. Wanted to post this and see what others think, hopefully some people with medical knowledge. I have a bong for buds only that I use a carbon filter adapter with. The water and chambers of the bong get little to no residue after many sessions, only from small pieces of ash slipping through the carbon filter. I would assume the cleanliness of the chambers is similar to my lungs. I have a bong for oils only that I use both a ti nail and a Health Stone with. Regardless of whether or not I use a carbon filter, the water quickly turns yellow and the famous golden brown film forms in the chambers. This happens, I assume, because the solid is being vaporized instantly and then is partially being cooled and transformed back into oil in while cooling in the water and the chambers. Don't our lungs have this film from the reconstituted vapor just like the chambers? Now unless your extract is 100% pure, there are probably other things in the residue besides THC. Seems like this should be discussed. Modnote: Evading a ban by registering a new account will result in a permanent ban on all associated accounts.