The below information is per pack only | | FIGHT HUMIDIFIER: This tank cleaner reduces surfaces. It contains no harsh substances. | | CONTINUOUS CLEANING: This cartridge features to inhibit the growth of dirt as well as helps avoid the buildup of slime in the water. | | SAFE AND PROVEN: The Protec Cleaning Cartridge used in drinking water filters to avoid objectionable smell and tastes. | | LONG LASTING: This cartridge keeps cleaning for 30 days and will work in most humidifiers, vaporizers and steamers. | | GENTLE CLEANING ACTION: This tank cleaner contains no harsh substances, making the cleaning action just as gentle as water on your humidifier surfaces and components. | |