Patent ID: 6237899
Filing Date: 2001-05-29
Classification: F24F,Y10S

Abstract:
A humidifier for providing moisture into an airflow to humidify air in a room having an ambient-relative humidity, the humidifier comprising:a housing having an air inlet, an air outlet, and a reservoir for holding water;a wick which is seated in the reservoir;a fan provided within the housing for creating the airflow, the airflow entering the air inlet, passing through the wick for adding moisture to the air and exiting through the air outlet into the room, the exiting air having an exit-relative humidity associated therewith; anda wick change indicator which includes:a hygrometer positioned within the airflow for measuring the exit-relative humidity of the airflow; anda display coupled to the hygrometer for indicating when the wick requires replacement based upon the measured exit-relative humidity reaching a predetermined value.