The Honeywell 24000, 99.97% HEPA Replacement Media Filter is capable of capturing 99.97% of airborne particles as small as 0.3 microns from the air that passes through the filter. This Commercial HEPA Filter Replacement can reduce airborne allergens such as mites, mold spores, pet dander, smoke and dust. Honeywell Commercial Air Filters feature a robust compatibility range that will afford owners a number of options when it comes to installation. Periodically replacing your commercial air filters can help in the removal process of common airborne contaminants and debris in your surrounding area. Replacing your commercial air filters also helps you avoid putting unnecessary wear and tear on your commercial air cleaner by following filter recommendations.To ensure stated air purifier performance, use only Certified Honeywell Filters.