Features:Multifunctional Humidifier: 4-in-1 machine including function of UV cleaner, humidifier, air purifier and aroma diffuser, not only does it purify the air and keep air moist, but also killing harmful substance and removing formaldehyde to clean house.Aroma Diffuser: designed with a corrosion resistant water tank for adding water, perfume or cleaning solution with no problem, and it is detachable for conveniently cleanup.Low Noise: keep quiet during working, will no disturb you even when you are reading or sleeping.Movable Design: omni-directional wheels at the bottom allow the machine to move around the house to thoroughly UV cleaning the whole house, or fill the room with aromatic scents to improve air quality.3 Mist Spraying Modes Switchable. Mode 1: continuously spraying mist. Mode 2: praying mist 2 seconds, then stop 3 seconds. Mode 3: Mist spraying and UV cleaning simultaneously. One button operation, smartly produce fine mist to humidify room.Anti-collision Design: built in with high sensitivity sensor to detect obstacles to avoid collision.