Mascotte Active Carbon Filters (6 mm) | Amsterdam Genetics
Berlin, Germany. 01st Aug, 2018. A young man prepares a joint from a marijuana-tobacco blend. In this joint, he uses an activated carbon filter instead of a normal filter. Credit: Gerald Matzka/dpa-Zentralbild/ZB/dpa/Alamy
Everything You've Ever Wondered But Were Too Scared To Ask About Joint Filters - Magnetic Magazine