Keeping the air in your home clean should always be a priority, and with 3M's Filtrete Micro Allergen Reduction Filter, you can always make it a priority. This may look like a typical air filter, but once you take note of a few of the Filtrete Micro Allergen Reduction Filter's one-of-a-kind features, you'll quickly notice it's anything but typical: it captures a variety of airborne micro particles like smoke, pet dander, household dust and smog particles. Large airborne allergens are also caught, including pollen, mold, dust mites and bacteria. Large particles like dust and lint are no match for the filter either. Did we mention this filter is made with electrostatically charged media? That's important because it not only filters particles in the air but attracts them, so the filter is always performing at its best. The filter has a 1000 performance rating, is up to 30-times more effective at capturing micro particles than standard fiberglass filters, and it meets the American Lung Association's Health House Project indoor air quality standards. And believe it or not, this 18-inch by 18-inch by one-inch micro allergen filter actually outperforms comparable three-month, one-inch filters. There's still more, like its impressive ability to filter your home's air for up to three months, it can catch harmful bacteria and particles that could be carrying viruses, and no excessive antimicrobial chemicals are added. When used correctly, the filtering material will not encourage the growth of bacteria, mold, mildew or fungi. So as you can see, there's really only one choice for allergen and microscopic particle reduction in your home's air, and that choice is 3M's Filtrete Micro Allergen Reduction Filter.