HEPA filters are made up of a mat of fibers that are arranged in a random pattern Polypropylene or fiberglass fibers with sizes ranging from 0.5 to 2.0 micrometers are commonly used. These filters are usually made up of tangled bundles of tiny fibers.
Different sizes, brands, components, features, MERV ratings, and filter media are available for air filters. Make sure you understand some of the essentials to ensure you purchase the proper air filter for your central air system:
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