I took on the task of looking at Switchbot's Evaporative Humidifier which uses cold evaporation to improve indoor humidity. As part of looking at the humidifier, I used the Switchbot Hub 2 ...
Cool mist humidifiers are usually quieter, and they are either ultrasonic or evaporative humidifiers. Conversely, warm mist humidifiers use steam to moisten the air and eliminate harmful bacteria ...