Using the Dyson Airblade Tap Dryer is easy. Just wash your hands at the sink as you normally would. Once your hands are wet, place them under the dryer. The touch - free operation will detect your hands, and within 14 seconds, your hands will be dry. When it comes to maintenance, keep an eye on the HEPA filter. You should replace it regularly according to the manufacturer's instructions to ensure the best performance and hygiene. Also, clean the dryer's exterior periodically with a soft, damp cloth. Avoid using abrasive cleaners as they may damage the surface. If you notice any issues or abnormal operation, contact Dyson's customer service for assistance.