portable humidifiers

Asked February 10, 2013, 10:15 AM EST

Hello, I have two small Guardian Technologies ultrasonic humidifiers. I am following directions for maintenance and cleaning but there is a red film developing on some of the parts in the base of the unit in the water. Perhaps you could hazard a guess as to what this is and whether it is harmful. I have called the company and they have told me that I don't need to worry as long as I'm following instructions. I live in Farmington Hills and have Detroit city water. I thank you for any info you can give.

Oakland County Michigan public water systems

1 Response

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