【Power Motor】: With 2.5 HP & 3 HP Dual-mode power motor, strong and efficient. 5.1" x 4.7" air outlet diameter, quickly filling and greatly air flowing. 3000 - 3100 r/min and 760 - 812 Cubic Feet Per Minute air volume flow can fill the inflatable without effort. 60HZ frequency allows you to reduce the intrusion of noise. 【The Most Important- safety】: The air blower have passed the UL and ETL certified, the shell is made of ABS material, safe and durable. And there has a clear cover on the switch, which is safe enough for you to turn on/off in case it gets wet. The heat dissipation is also very powerful, long working hours will not overheat. 【1800W / 2200W High Speed Blower】: With 2.5 / 3 horsepower, strong and efficient 1800W / 2200W watts motor, 5.5" air outlet diameter, quickly filling and greatly air flowing. 3100 r/min and 1450M³/H air volume flow can fill the inflatable without effort. 60HZ frequency allows you to reduce the intrusion of noise. 【Widely Range of Usage】: The fan blower comes with 2m/6.6ft long power cable, easy to inflate in different locations. Widely use indoors or outdoors, suitable for small bounce houses, water slides, obstacle courses, paint booth air sofas, and other suitable inflatable bouncers. 【Simple Operation & Warranty】: High quality fan blower with boosting capacity up to 2400 Pa. Anti-slip handle can easily pick up and put down, connect the inflatable items and press the switch to inflate. If you have any questions or dissatisfaction with our products, please feel free to contact us and we will reply you within 24 hours. Bounce House Blower, Dual - Mode 1800W / 2200W, 2.5HP & 3HP Dual Speed Commercial Air Blower with Great Heat Dissipation Properties, Super Strong Wind for Bouncy Castle, Jump Slides, Inflatables