Using the DeWalt DCBL722B handheld blower is easy. First, make sure the blower is charged with a 20V MAX* battery. Then, if you need to clear debris in a narrow area, attach the concentrator nozzle. Hold the blower firmly with both hands and use the variable - speed trigger to adjust the air speed according to your needs. You can lock the speed with the speed - lock feature for continuous use. When using, keep a safe distance from people, animals, and delicate objects. After use, clean the blower with a soft brush to remove debris. Store it in a dry and cool place. Periodically check the battery and motor to ensure they are in good condition.