AprilAire Dehumidifiers balance your home’s humidity by reducing mold- and mildew-causing moisture, helping to keep you protected against the harmful effects of allergy and asthma symptoms. AprilAire Dehumidifiers also preserve your home and any contents susceptible to warping and rot and help prevent pests. For homes with crawl spaces, AprilAire Dehumidifiers help ensure the integrity of encapsulated spaces by controlling humidity from within.