The standard for lightweight and operator ergonomics, delivers commercial-grade power at the pipe is the ECHO PB-620. It has a powerful 58.2 cc power boost tornado engine. The PB-620 has an average airflow of 530 CFM with a maximum air speed of 185 MPH. With this kind of performance leaf removal has never been easier. The L shaped frame, constructed of a high impact resistant plastic, provides a lightweight unit while maintaining the durability.