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Key Features

• -BUY WITH CONFIDENCE This genuine AprilAire humidistat was designed by AprilAire, the leader in indoor air quality solutions, to optimize the performance of your AprilAire Whole Home Humidifier in Automatic Mode, with the option of Manual Mode when needed
• -AUTOMATICALLY ADJUSTS your home's relative humidity (RH) based on the outdoor temperature, when used in Automatic Mode, so there no need to manually adjust the control when outdoor temperature changes
• -MAXIMIZE HEALTHY HUMIDITY in the 40-60% RH range which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites - feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions
• -SIMPLE OPERATION with few adjustments in Automatic Mode eliminates the need to turn the dial setting to OFF during the summer season
• -CONVENIENT INDICATOR LIGHT alerts you when it's time to change the AprilAire Water Panel in your AprilAire Whole House Humidifier