Because it mainly works through the vibration of water molecules, and the energy is also absorbed by water, so it cannot cause harm to the human body. The sound it produces is not ultrasonic. In addition, it will not produce harmful substances to the human body during operation. It is mainly a sound wave above 2KHZ that vibrates at a high frequency of 20,000 times per second to remove oil stains on the tableware, which has the effect of high efficiency and environmental protection. , so you can use this dishwasher with confidence.
You can get Ultrasonic Dishwasher from https://www.ubirestaurantware.com/
Indonesia