Using the DeWalt 20V MAX* Brushless Handheld Blower is a piece of cake. First, make sure the battery is fully charged and properly installed. Then, hold the blower firmly with both hands. Use the variable - speed trigger to adjust the power according to the amount and type of debris you're dealing with. You can lock the speed if you need to maintain a constant power level. When using the concentrator nozzle, it's great for targeting small areas or stubborn debris. For safety, always wear safety goggles and ear protection, especially when operating in noisy environments. Don't point the blower at people, animals, or delicate objects. As for maintenance, after each use, clean the air intake and exhaust ports to prevent clogging. Store the blower in a dry place. Regularly check the battery and charger for any signs of damage. If you notice any problems, stop using the blower immediately and contact DeWalt's customer service.