Research Product Corp., P.O. Box 1467, Madison, WI 53701-1467; (608) 257-8801; fax (608) 257-4357.
Auto humidifier
April 1, 2003
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The Aprilaire-brand Model 400 automatic humidifier uses a patented water-delivery system that includes a float chamber.
The Aprilaire-brand Model 400 automatic humidifier uses a patented water-delivery system that includes a small float chamber, electronic water-level sensors and a wicking water panel. The use of the float chamber eliminates the need for a reservoir. The wicking panel allows almost 100% of the water in the unit to be used in the evaporation process, eliminating almost all standing water.
