The product is humidifier capsule;Easy and simple use kit;Proudly Made in USA;For use in ALL types of humidifiers: Cool mist, warm mist, ultrasonic & vaporizers;Antimicrobial treated to prevent the growth of odor causing bacteria & mold.;Helps keep tanks clean of hard mineral deposits.;Eliminates the need to add chemicals every time you add water to the humidifier tank.