I am using this humidifier in my son’s room and I have noticed a throat irritation when I am in the room. However, I have bought this to help with my son’s hay fever. My son is sleeping all night now, breathing normally, without blocked nose as it used to happen every night before using this humidifier. It is very silent and it stays on all night. When the water is finished (if you don’t fill the tank until the top) it will stop automatically.
So far, I am really pleased with this item.