Considered an industry leader in performance, durability and selection, RedMax's leaf blowers are efficient, powerful and easy to operate. All backpack units are equipped with variable speed cruise control throttles and extra-wide shoulder straps and a contoured, air-forced, cushioned back pad that keeps users cool in the field. RedMax backpack blowers use only commercial-grade engines with large 2-stage air filters for long service life. Most models include patented Strato-Charged engine technology. Backpack blowers are also equipped with wide-sweep elbow rotation for full operator mobility and maneuverability, even in cold weather.