The Honeywell F100 16 x 25 media style air cleaner is a whole house air cleaner that uses a disposable filter media to remove airborne particles from the air. This Honeywell air cleaner series included the models F100B1016, F100F1012 and F100F2002. Its filter media must be replaced every 6 months if you have heating and cooling or every 12 months if you only have heating.