Removes Minerals and Pollutants from Water</br>Antimicrobials Treated Filter - Helps prevent the growth and migration of mold?? algae and bacteria on filter</br>The Cool Mist Wicking Filter should be replaced about every two months?? depending on use and local water hardness</br>This is a ProTec replacement part</br>Part Number PWF2M</br>This is an aftermarket of generic part</br></br>Product Description</br></br>The ProCare Replacement Humidifier Filter works some Vicks Cool Mist Humidifiers. These filters are antimicrobials treated to prevent the growth of mold and bacteria. This filter eliminates minerals and impurities from the water?? providing clean?? fresh moisture.</br><br/>http://www.amazon.com/gp/product/B0183RU1WI