First, let's refer to the air filter. The filter in the humidifier is actually a form of wick. It brings the water up from the reservoir in passes in front of the air flow. The air picks up the...
If you are talking about a damp-it, just take the damp-it and submerse it in a cup of water for about 5 minutes. Then take the damp-it out, dry it off lightly with a towel, and put the damp-it in the...