The Greenworks Optimus BB361 Backpack Blower utilises the intelligent power of our patented Cyclone-Force Technology which combines high speed and constant power to provide up to 36 Newtons of Force – allowing users to clear bigger piles of wet or dry leaves in tall grass with ease. This intelligent technology helps professional landscapers get the job done by generating 363km/h and 1295m/3 of airflow from start to finish. Noise Sensitive Areas are a breeze with the BB361, with the low noise mode only emitting 65dB of noise.