Comes standard with the Alen A250 Air Purifier, the Alen TotalHEPA Filter combines three layers of filter technology to purify and freshen the air in your home. Polluted air first passes through Alen’s washable Pre-Filter to capture large particles, extending the life of the filter. In the second layer, air moves through a unique, electrostatically charged HEPA style material that attracts and captures dust, pollen, pet dander, mold spores and other airborne pollutants. In the final layer, clean air passes through a layer of Alen’s Activated Carbon, reducing light odors and chemicals commonly found in the air from cleaning products, smoke, cooking, pets and various other household materials.

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• Over time, the TotalHEPA Filter becomes overloaded with particles, decreasing its filtration performance. We recommend regular filter replacements, at least every 6 months with normal use.
• Rinse or lightly vacuum the removable black Alen Pre-Filter as soon as it develops a layer of visible particles. Allow it to completely dry before replacing.
• Washing or vacuuming the white HEPA style material will damage the fibers and is not recommended.