honeywell warm mist humidifier - soothing comfort with essential oil feature, fan free operation is ideal for bedroom use, 99.5% bacteria free mist. two moisture output settings, refill light illuminates when water tank needs to be filled, essential oil feature – can be used with essential oils or liquid inhalants, easy to fill and clean- wide tank opening and dishwasher safe parts, auto shut off when empty, filter free operation, tank capacity: 1 gallon, room size: medium, moisture type: visible warm mist, run time per filling: up to 24 hours, 3 year limited warranty