Air quality matters. That's why you trust April Aire to keep your home safe for you and your family. This genuine April Aire 201 Air Filter makes the air in your home fresh and healthy so your family can breathe easy. Annual air filter replacements are a great way to keep your home and family protected. Genuine April Aire filters are specifically engineered to work with your April Aire air cleaner. They are effective for 6-12 months compared to the traditional 1-3 month filter, saving you time and money. Our 4 filters provide more filter area for harmful particles to be captured compared to the traditional 1-inch filters. April Aire’s patented self-seal technology assures no air will pass by unfiltered, keeping your home clean and HVAC system operating at peak performance.