They work by using a fan to blow air through a filter. However, the fans can be noisy, and the filter should be cleaned regularly to prevent bacteria and mold from growing. Ultrasonic humidifiers ...
There are two main types of cool mist humidifiers: Ultrasonic humidifiers produce a mist via ultrasonic vibrations. They use a metal or ceramic ‘diaphragm’, which vibrates at an extremely high ...