Clean air means a cleaner environment for your family, free from dust, smoke, and pollen allergens. Refresh the air in your home or office with the Lasko Air Flex Portable 3-Speed Air Purifier Machine Box Fan, ideal for bedrooms, kitchens, man caves, laundry rooms, and much more. Provide a cleaner environment for your family. Remove dust, smoke, and pollen from the air in your home and office with the Lasko box fan. Choose from 3 different fan speeds to make your living space comfortable. The air odor eliminator is great for any room in the house and is portable so you can transfer the fan from the kid's playroom to your garage when you work on cars or any place you need some extra airflow. This exhaust fan comes with a 6-foot-long cord for easy access to any room with an outlet. Cool off in your favorite hangout with the Air Flex Portable 3-Speed Air Purifier Machine Box Fan from Lasko.