The attached pictures show you an air filter before cleaning, and an air filter after cleaning. Management attempts to get into every unit to clean these for you every six months. It takes approximately a minute to clean these with a vacuum. We encourage all of our residents to clean these themselves as well. If you need assistance, please call your property management office. Cleaning will provide a more efficient A/C unit, cleaner air, less odor, and also adds to the life expectancy of the unit itself.