Clean The Filter Screen Of Fish Humidifier AccessoriesProduct information: Easy to use: Just put the lovely clean fish in the water tank of the humidifier, and it will float in the fish tank of the humidifier. One humidifier cleaner can be used for a one gallon humidifier. Replace every 30 to 60 days. Suitable for most humidifiers: the humidifier cleaner is perfectly matched with most evaporator steam engines, evaporation type, ultrasonic humidifiers, warm and cold fog humidifiers and fish tanks, and