Noise, fumes and gas are a thing of the past, with the quiet RYOBI 40V Lithium Backpack Blower. At just 59 dB, this Whisper Series backpack blower is the quietest in the industry. CROSSFORCE Fan Technology and a brushless motor deliver all the power you need, with 625 CFM and 145 MPH. The quiet backpack blower includes pro features like a variable speed throttle and cruise control, offering convenient operation is at your fingertips. Enjoy comfort and support no matter how long you work, with the adjustable shoulder straps and contoured back. The RYOBI 40V Lithium Backpack Blower is backed by a 5-year warranty.