Question about Bionaire BU4000-UC Humidifier
There is white dust in the mist coming out of my BU_4000-UC humidifier. It is only a few months old. We can clearly see white dust on the table where the humidifier is, the humidifier itself and to a lesser degree, on all the furniture in the room as well as the palms of the ceiling fan. What can I do to avoid this problem and is it harmfull?
A concern is minerals in the water. Impeller and ultrasonic designs send these minerals into the air. If the water in your area contains a lot of minerals, you will notice them as dust. The EPA does not issue health warnings about minerals in the air, but does recommend using low-mineral water (such as distilled water) in your humidifier. Many ultrasonic models feature a demineralization cartridge that filters minerals out of the water to prevent the dust.
Posted on Apr 21, 2008
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