This Aprilaire media air filter helps keep your HVAC equipment running at peak efficiency and lowers your energy costs. It removes common airborne allergens including dust, pollen, mold spores, bacteria, pet dander, and dust mites as they pass through the MERV 13 rated filter. This replacement air filter fits the Aprilaire model 1510 and is easy to install, with no assembly required. To enhance the health of your home environment, it features the patented Aprilaire self-seal technology, which minimizes the amount of air bypassing the filter. For best performance, change this Aprilaire 513 high-efficiency air filter every 6 months.