ThePB-770 is a powerful, professional back pack blower. Suitable for heavy duty clearance work, the massive power generated by its 63.3cc engine translates to an incredible maximum airflow of up to 1290m3/h at speeds of 104.6m/s.  Designed to be ergonomic with intuitive controls that are easy to access. It features anti vibration technology, a ventilated back pad for operator comfort and an easy access heavy duty air filter to ensure dust and debris do no enter the engine.