The Senix BL4QL-L 26.5cc handheld leaf blower features a 4-cycle engine that does not require mixing gas and oil, and is lightweight and powerful. Starting the blower is made easy thanks to the auto-choke release feature. The 4-cycle engine has lower emissions and is more environmentally friendly than 2-cycle engines. The fan and motor are designed to reach up to 410 CFM and 125 MPH for excellent debris and leaf clearing capability.