This 3M Filtrete Smart Air filter has dimensions of 20 inches x 20 inches. It attracts and traps bacteria, particles that can carry viruses, and large particles such as mould spores and pollen to ensure your home is filled with cleaner, fresher air. Each filter comes with a Bluetooth-enabled sensor that pairs with the Filtrete Smart Air Filter app to help track filter life and determine optimal replacement time. Use the app to access information such as your specific filter type and size. Get notifications when it's time to replace your filter. The app is available for all iOS and Android devices. Filtrete air filters are meant for residential use only. This particular model boasts and MPR of 1500.