Designed for the Alen A350 Air Purifier, the Alen HEPA-Silver Filter combines three layers of filter technology to purify and freshen the air in your home while protecting the filter against bacteria and microbes. 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. Alen’s anti-microbial Silver-Ion threads are woven into the HEPA style material, protecting the filter from harmful bacteria* and microbe growth. 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.

*Test results demonstrate a 99.99% kill rate on E. Coli and Staph Bacteria.

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• Product Code: BF25A-Silver
• Over time, the HEPA-Silver 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.