Tornado Windshear SD 3500 w/ Cart and Safety Banner. The Tornado® WindshearTM Safety Dryer is built with patented, rotationally molded  material to withstand the harsh, every-day use of contract cleaners, restoration  professionals and more. Due to its go-anywhere, durable construction, our fan  will outlast other competitive models on the market today. TOR-98776 $358.00