Ultrasonic humidifier achieves humidification effect through high-frequency vibration. Inside it, there is a crucial ultrasonic transducer. When the humidifier is started, the transducer will convert electrical energy into high-frequency mechanical vibration, which will be transmitted to the water in the tank. Water molecules are violently shaken under high-frequency vibration and instantly dispersed into extremely small cold mist particles. These particles are usually in the micrometer range in size and can float lightly in the air, rapidly increasing air humidity. This cold mist humidification method does not change the indoor temperature, allowing users to enjoy moist air without feeling stuffy, creating a comfortable and pleasant indoor environment. It is also an aromatherapy machine, whose main function is to emit various wonderful fragrances. It can use various types of aromatherapy essential oils, such as lavender essential oil, rose essential oil, lemon essential oil, etc. Different essential oils have different aromas and effects. Lavender essential oil can relieve stress and help with sleep. When lavender essential oil is added to the aromatherapy machine, the entire bedroom will be filled with a peaceful atmosphere, helping people relax and fall asleep faster. Rose essential oil has romantic and soothing effects, suitable for use in leisure spaces such as living rooms, creating a warm and romantic atmosphere.