As the #1 selling brand in faucet filtration (Based on Nielsen sales data for the 52 weeks ending 05/01/21.), PUR faucet filtration systems are certified to reduce 70 chemical and physical contaminants, including lead, mercury and certain pesticides, as well as reducing chlorine (taste and odor). Plus, PUR’s Mineral Core technology filters water over natural minerals for a crisp, refreshing taste. PUR faucet filtration system filter replacements are certified to reduce lead and 10x more chemical contaminants than Brita's leading pitcher filter (Versus best-selling Brita® pitcher filter OB03. Brita® is a trademark of Brita LP.) PUR has been developing innovative technologies for superior water filtration for over 30 years.