Are ultrasonic humidifiers cleaner?
On One Hand: More SanitaryEvaporative humidifiers use a wicking filter to disperse moisture into the air, whereas ultrasonic humidifiers do not. The wicking filter tends to create areas of stagnant water which can be a breeding ground for harmful mold and bacteria. To prevent this, you must clean the humidifier daily.On the Other: Minerals in Water Are Not FilteredUltrasonic humidifiers’ filterless design prevent them from growing bacteria, but anything that is already in the water is put directly into the air.
