This is a question that has bothered me for a long time now and despite the hundreds of threads throughout the internet on various forums, I can’t find a conclusive answer. Does anyone know from first hand experience do filters filter out thc? Anyone have any scientific reasoning to back up their answer? My thought would be no, because filters filter out the solid particles of tobacco smoke like tar, if the thc is vapourised during burning and turns into a gas (boiling temperature of thc 150C and burning temperature of tobacco from various sources states at least 500C (in the UK we only smoke spliffs, bud is too pricey for buddhas or blunts)), then I see no reason for it to be filtered unless it condenses by the time it get to the filter…. but then you won’t be inhaling it anyway…..
I ask because if weed’s been sprayed the filters would filter out fibre glass, or whatever its been sprayed with. If filters do for some reason filter out thc, what about putting a tiny bit of cotton between the roach and the herb your smoking? Surely that wouldn’t filter out thc? Via (only registered users can se the link, login or register)