https://www.acehardware.com/departments/heating-and-cooling/air-quality/humidifier-filters/4294682
Vornado Humidifier Filter 1 pk For Fits: Vornado UH100, Ultra1, Ultra2, Ultra3 Mfr# MD1-0018 - Ace...
Ordinary tap water is full of lime, calcium and a host of other minerals. When this water is vaporized, white dust can form a kind of residue buildup that can...