Scientists from the US Department of Energy invented the ultrasonic dryer to dry clothes without heating. Its principle is that the ultrasonic waves cause the water droplets to vibrate at high frequencies and leave the clothes. Scientists say the method allows clothes to dry in 20 minutes, while a typical dryer typically takes 50 minutes.
Americans spend $9 billion a year on electricity for dryers. This new invention saves energy and money. In addition, ultrasonic drying will also make lint less, as most lint is produced when hot air blows tiny fibers off the clothes. At the same time, heating without drying also reduces the possibility of color fading.
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