humidifier求推荐# NextGeneration - 我爱宝宝
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想买一个humidifier放在宝宝屋里.看到好多humidifier是ultrosonic的。查了一下，
只看到用humidifier要注意mineral的污染和细菌滋长的问题，难道没人对这个
ultrasonic vibration有concern吗？这种声音听不见可是对宝宝会有影响么？
‘Unlike other humidifiers, an ultrasonic humidifier utilizes ultrasonic
vibrations to form a cool mist which is dispersed in the surrounding air,
thereby increasing moisture content. Some humidifiers boil water for the
same purpose, however, this one generates a fine mist due to the vibration
of a metal diaphragm at ultrasonic frequency, which cannot be heard by
humans. Since water used in the humidifier is not boiled, impurities within
the appliance are spread along with the fine mist generated.’ --http://www.buzzle.com/articles/dangers-of-an-ultrasonic-humidifier.html
只看到用humidifier要注意mineral的污染和细菌滋长的问题，难道没人对这个
ultrasonic vibration有concern吗？这种声音听不见可是对宝宝会有影响么？
‘Unlike other humidifiers, an ultrasonic humidifier utilizes ultrasonic
vibrations to form a cool mist which is dispersed in the surrounding air,
thereby increasing moisture content. Some humidifiers boil water for the
same purpose, however, this one generates a fine mist due to the vibration
of a metal diaphragm at ultrasonic frequency, which cannot be heard by
humans. Since water used in the humidifier is not boiled, impurities within
the appliance are spread along with the fine mist generated.’ --http://www.buzzle.com/articles/dangers-of-an-ultrasonic-humidifier.html
