Music Nomad MN301 Humid-I-Bar Replacement Sponge Overview:

The innovative Humid-i-Bar technology is used in MusicNomad’s Humitar Humidifier. This is a replacement sponge that can be inserted in the Humitar Humidifier. It works for the Soundhole Humidifier (MN300), the Case Humidifier (MN303) & the Humitar ONE (MN311). Always use distilled water.