And that the best shower water filters are the only answer. The best shower water filters on this list are indeed quite good at removing the abrasive chlorine compounds that cities add to your tap water to kill bacteria. Chloramine is more difficult to filter out—and not all shower filters succeed. For more purity filters and tests, check out our guides to the Best Backpacking Water Filters, Best Air Purifiers, and Best Indoor Air Quality Monitors. For more ways to level up your bathroom, check out our guides to the Best Bidets, Best Electric Toothbrushes, and the Best Eco-Friendly Cleaning Products for Your Home.