A high quality whole house filtration system can efficiently reduce pesticides, radon, heavy metals, parasites, chlorine, rust, bacteria, copper, arsenic and other volatile organic compounds from your home's water supply. More importantly chlorine vapours are released faster when water is heated up in kettles, showers and dishwashers. Inhaling chlorine vapours on a daily bases may affect health long-term. With a filtration system in place chlorine and its vapours are no longer consumed or inhaled and water will be what is should be, clean and fresh tasting.