Moose Labs Mouthpeace Filter Roll 10’sMouthPeace Filters Triple Layer Activated Carbon MouthPeace triple layer Activated Carbon Filters were designed to provide a cleaner, smoother, better tasting puff while removing resin, tar, and other contaminantsbasically, all the stuff that causes coughing and harsh tasting hits. Change as needed based on personal preference. MouthPeace Carbon Filters generally allow 5 10 large hits per use.