AutoDuster removes up to 80% of airborne dust before it lands on furniture - without the use of chemicals or sprays! This means you can dust furniture up to 50% less. It also removes airborn allergens like smoke, pollen, and pet dander from the air. How effective is it really? AutoDuster can clean up to 80% of airborne dust from a 211,000 cubic ft. of air per day. That's enough air to clean a 2,000 sq. ft. home 13 times per day!The value pack includes a two-year supply of filters - free!