If filter has not absorbed water, wait 15 minutes before starting humidifier. If there is mineral build up in the tray, then clean unit as instructed in owner's guide. If filter needs to be replaced, then purchase new filter at your local store or in the filters section of our website. If your unit has a humidistat, it is possible that the humidistat is set below the current room humidity.
- Why is the water not being used? Mist output minimal to none?