- Make sure this fits by entering your model number.
- BUY WITH CONFIDENCE This genuine replacement filter was designed and manufactured in the U.S.A. by Aprilaire – the leader in indoor air quality solutions
- OPTIMIZES THE PERFORMACE of your Aprilaire or Space Gard Air Purifier Model 2400
- CREATE A HEALTHIER HOME by preventing airborne allergens from circulating through the air in your home. Remove common airborne allergens from the air as it passes through the MERV 10 filter including dust, pollen, mold spores, bacteria, pet dander, and dust mites
- WORRY FREE We stand behind the performance of our air filters with our 10-year Clean-Coil Commitment
- SAVE TIME & UPGRADE PERFORMACE Consider the Aprilaire 2400 Upgrade Kit. It replaces the original 401 filter with a high performance 413 replacement filter and new filter frame system, eliminates pleat spacers
Air quality matters. That’s why you trust Aprilaire to keep your home environment safe for you and your family. This genuine Aprilaire 401 Air Filter Replacement is rated MERV 10. That means it makes the air in your home fresh and healthy so your family can breathe easy. It’s proven to prevent 92% of particles between 3.0 and 10.0 microns from passing through your home’s heating and cooling system. That includes dust, pollen, and mold spores, which can irritate allergies and worsen asthma symptoms. Annual air filter replacements are a great way to keep your home and family protected. Aprilaire makes it easy to know what you’re breathing.