The Flaem Olly steam humidifier has a 4.5L water tank that runs for up to 14 hours. Its wide opening makes refilling easy, and it’s simple to clean for better hygiene. The steam cooling system reduces the risk of burns, with steam at around 50°C. The adjustable steam flow and protection system prevent overheating. An indicator light signals when the tank is empty, and the device is lightweight and compatible with essential oils.