APRILAIRE Filters and Dehumidifiers Aprilaire is the number one manufacturer of dehumidification equipment. An Aprilaire Central Dehumidifier provides continual humidity control throughout your entire home. A home with too much humidity can become a perfect environment for allergies and pathogens. By limiting the amount of humidity from 30 to 60%, the homeowner can discourage the growth of allergies and a variety of respiratory infections. Central air conditioning units have limitations. It only dehumidifies when it is running. The Aprilaire central dehumidifier controls humidity independent of your air conditioner. Call Finch Air Conditioning at 281-476-4777 to schedule an appointment.