INTRODUCING THE HEAVY-DUTY TURBOJET ULTRA AIR XL. The Ultra Air XL is our strongest TurboJet. With our patent pending TurboJet technology, the blower’s TURBO mode delivers an incredibly strong airflow and offers triple the power and performance over our popular TurboJet Air Duster Pro. The Ultra Air XL’s highly efficient brushless motor provides more torque, quiet operation, and longer life. 35,000 RPMs (1hr runtime). 50,000 RPMs (45min runtime). 70,000 RPMs (14min runtime). 120,000 RPMs (10min runtime).