Medusa Activated Carbon FiltersMany stoners don't like activated carbon filters because they feel the pulling resistance is too strong. This is where the 'Medusa' activated carbon filter comes in. Due to the new double filter system, strong puffs are a thing of the past. The activated carbon from coconut shells filters unwanted subsidiary products from the smoke and cools it down while the added cellulose absorbs moisture. The perfectly combined components of the 'Medusa' filters