The only maintenance required in your Aprilaire dehumidifier is the periodic replacement of the disposable Aprilaire® Filtering Media which you can do in a few minutes. The frequency of replacement in an Aprilaire 2200 will vary with operation time, the number of particles generated in the home and is affected by: number of people and their activities, the amount of carpeting, pets, size of home, number of smokers, the pollution level of the area. We recommend replacing the media each year. However, if you do not run your blower continuously the filter media may last up to two years. Air conditioning systems larger than 3.5 tons, or heating systems larger than 130,000 BTUs per hour (1400 cfm), will require more frequent attention if operated continuously.
