Style:210 CLEAN AIR | Size:Single Pack (1) Product Description Are you bothered by the amount of dust and other particles in the air and on the furniture in your home? The Aprilaire Clean Home Filter is the perfect addition to your clean home tool kit. It traps airborne dust as air circulates through the filter– reducing your cleaning time and frequency, and allows you to enjoy your clean home even more. The 210 Clean Air Filter is rated MERV 11 which means it traps airborne impurities from the air as it passes through the filter that would otherwise float through the air and eventually settle on your furniture and flooring. Your HVAC system is protected from airborne particles too, which helps lower your energy costs, and can prolong the lifetime of your equipment. Note: MERV is a scale used to measure the effectiveness of air filters. Higher number values translate to more effective filtration. Choose the Aprilaire Filter with the MERV rating that fits the needs of your family and home. Performance tested to ASHRAE 52.2 Standard, minimum efficiency reporting value – MERV 11 From the Manufacturer This is the MERV 11 replacement filter for Aprilaire Air Cleaners. The filter is the heart of the air cleaner and needs to be changed once a year. Use only genuine Aprilaire SelfSeal #210 to ensure the best performance of your air cleaner.