[High Performance] For best performance, it is recommended to repalce the humidifier pads every 2-3 months, depending on usage and water hardness, It captures mineral from hard water and distribute moisture more evenly and thoroughly throughout your home. [Compatible] for MAF1 Humidifier Models: MA0950, MA1200, MA1201, MA09500, MA12000, MA12001, MA12010 [Easy Installation] We advise you to fill the humidifier tank with distilled water instead of hard water. Easy to replace, 1. Open the humidifier cover and the old wicking pad; 2. put the new humidifier wick filter in its old position; 3. Install the cover to complete the replacement. [Humidifier Pads Refill] Content-humidifier filter replacement.