The A.O. Smith AO-WH Filter cleanses water from every tap in your home using Granular Activated Carbon (GAC) filter. It is to reduce 97% of chlorine taste and odor on water used for drinking, cooking, showering and bathing. The chlorine removal helps to improve skin, hair and air quality since it reduces exposure to harsh chlorine which can cause excessive drying and it keeps chlorine from evaporating into the air. AO-WH Filter also reduces chloramine, mercury, chemicals and turbidity. It is suitable for big households.