The Vicks V3900 accepts the following replacement parts:
The Vicks V3900 Germ Free Cool Mist Humidifier is a cool moisture humidifier that releases humidity into a room to temporarily alleviate the discomfort of dry air. Utilizing UV technology, this Vicks humidifier can kill up to 99.9% of bacteria, fungus, mold, and viruses within your humidifier water after only two continuous hours of use. This UV humidifier ultimately results in the emission of moisture that's virtually germ free.
Your germ free humidifier experience can be enhanced by adding Vicks specially formulated scent pads that offer the smell of menthol or lavender and rosemary vapors. Operating the V3900 humidifier is easy and features a quiet operation style that is nonintrusive. In addition, this humidifier's tank can hold up to one gallon of water and the unit itself can operate for up to 24 hours per filling.
Vicks V3900 Germ Free Cool Mist Humidifier specifications: