Ultra-low frequency ultrasonic cleaning machines have been linked to the deaths of at least 10 people in California and Michigan.The ultrasonic cleaner is manufactured by Ammonia Cleaning Systems, which was founded by two ultrasonic-tongued ultrasonic tech-savvy executives in 2015, according to Reuters.In February, the company announced plans to buy out rival CleanTech, a technology company […]
Continue.. Ultrasonic tooth cleaner, ammonia cleaner linked to deaths