Best shower filter for 2021 Wash away all the chemicals that are hiding in your shower water with these filters. Even in cities in developed countries, toxic or polluted water can pose a serious health risk to the community. Did you know that shower water can contain just as many harmful contaminants as the water you drink, including heavy metals, asbestos, chlorine, fluoride and other chemicals and impurities? But just when you thought we were trying to throw cold water on your at-home spa day, there's some good news: For a relatively low price, you can find the best shower filter to provide water filtration to protect yourself and your family from all the metals and chemicals in water. If you use a water filter pitcher to remove sediment and contaminants in your drinking water, imagine the same concept of a filter for your shower water.