Carcinogenic chemicals like chlorine in our water can affect long-term health and can also trigger a reaction in chemically sensitive individuals. Chemical-free water is not only healthier, but can also mean softer hair and skin. Sprite Royale chlorine-removing shower filters initially remove 99% of free chlorine, combined chlorine (sodium hypochlorite) and hydrogen sulfide (odors). This top quality, full-featured shower filter contains Chlorgon, a shower filtration media engineered to remove more chlorine than other filters. Replace the Sprite Royale filter after roughly 3 months of use (or after about 3000 gallons of water passes through it) because the filtering capacity decreases from 99% to 75% with use.