Review on 🏢 Holmes HUL310-U-2 1 Gallon Ultrasonic Humidifier, Adjustable Mist, White by Kamil Campbell

First, DO NOT use this or any other humidifier with tap water if the water is considered "hard". Filling the tank is not easy as the handle protrudes from the top surface and therefore the tank is not on a flat surface when filling. The heat option is not very useful. The evaporating mist is a cooling process, so the energy used to heat the water is lost in the process. The device creates a large amount of fog and effectively increases the humidity in our house.