Protects against over 30 contaminants including bacteria parasites microplastics lead mercury and chemicals including PFAS chlorine organic chemical matter (pesticides and herbicides) dirt sand and cloudiness; improves taste. Click here for a full list of all contaminants removed.|Activated carbon + ion exchange filter available in 1-pack 2-pack and 3-pack options or in full filter kit with membrane microfilter|LifeStraw is proud to a B Corp and Climate Neutral Certified brand committed to meeting the highest standards of verified social and environmental performance transparency and accountability