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disposable ac filterDisposable washable filters: There are several methods of cleaning the air in a building and in the furnace and air conditioner. The first method is the air exchange system, in which contaminated air is forced out of the building and replaced with fresh air from the exterior. In a single family residence this means the return air is collected from the outside, such as from under the house, then forced through the house and back to the outside. This method is often required in commercial, and industrial buildings and some shop buildings. Although the system could not possibly be as efficient as one which continually passes the same air over the heating or cooling chamber, in moderate climates, much can be said about the benefits of continual fresh air entering the building. Be aware that the inspector does not indicate the source of return air. If this concerns you do not hesitate to call the inspector for more information. The second method of cleaning the air in the building is to use some sort of mechanical device. Fiberglass panel filters are typical. Some are disposable, some are washable, some are electronic. These type filters clean most of the dust and lint from the air helping to prevent equipment malfunction. Filters should be cleaned or changed on a regular basis at least every three months.
File last updated May 22, 2012 * Copyright © 2012 All rights reserved by: Accurate Inspections, Inc. A New Jersey home inspection firm 56 Woodland Drive, Woodland Park (formerly West Paterson) NJ 07424 973-812-5100 providing New Jersey Certified Home Inspections in NJ, by New Jersey Licensed home inspectors. Inspector of record Michael Del Greco, New Jersey Home Inspector License GI 0121.
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