Avoid Hair Loss and Dry Sensitive Skin with a H2O Pure Blue Shower Filter. Removes 98% of the Chlorine in your water as well as other impurities. Pure Blue shower filters are designed to protect you and your family’s skin and hair from hard, chlorinated water. Our filters also include an angled adapter so you can twist your filter onto any faucet as well as an easy sign-up subscription to receive your replacement filter cartridges on time.