Mission Ready Capsule Filter for Water Bottles Activated coconut shell carbon reduces waterborne chemicals, improves taste and eliminates offensive odors. Miraguard Antimicrobial Technology suppresses the growth of bacteria, algae, fungus, mold and mildew within the filter media Long lasting and economical, the Mission Ready Capsule will filter up to 50 gallons Environmentally safe and friendly, reduces empty bottle waste by re-using water bottles BPA and phthalates free.