Dampp-Chaser Piano Humidifier Treatment - 7.5 oz. Bottle - Humidifier Treatment designed to reduce mineral build-up - Prolongs the life of your humidifier and pads - Helps to keep the watering tube clean and clear -Add one cap full to water for each filling - 7.5 oz. bottle Pad Humidifier Treatment Description: PAD Treatment prolongs Humidifier pad life, keeps the watering tube clean and clear, and reduces mineral build-up in the humidifier tank. Use one (1) cap full every time you refill the humidifier with water. PAD Treatment is the only product recommended for use in the Piano Life Saver System Humidifier from Dampp Chaser Corporation.