If you like to be healthy and enjoy pure-tasting water, why not consider a home water filter? Here are several reasons to get one for your home. Removes Chlorine Chlorine is added to water to disinfect it and remove bacteria and bugs that can harm health. However, chlorine itself can, depending on conditions, react with organic substances to form trihalomethanes or THM. The benefits of adding chlorine are thought to outweigh the risks of these by-products.