[header] How to clean a humidifier filter [title] Unplug your humidifier. [step] Before you disassemble your humidifier unit, make sure it's turned off and disconnected from the wall outlet. You're going to be handling a lot of wet parts, so this will help you prevent any accidents or damage. 
[substeps] Choose a flat, water-resistant surface as your work area. A countertop near the sink is optimal.