Product review (4 stars): Fits in so many humidifiers!
I'm so glad these are available on Amazon in a two pack. These are great replacements for Vicks humidifiers of all types as well as other brands of humidifiers. We have two different Vicks humidifiers that we use pretty regularly, and these filters are great because I can buy a two pack and they fit into both machines. They last about 6 months when used regularly. However, if you let them sit with water in the humidifier for more than a few days, they can start to grow mold. So clean out your humidifier when not in use!