Humidifier classification

　　Ultrasonic humidifier: It uses 2 million high-frequency oscillations of ultrasonic waves per second to transform water into ultrafine particles and negative oxygen ions ranging from 1 micron to 5 microns. Through a pneumatic device, the water mist is diffused into the air to achieve uniform humidification. Its advantages are small size, high humidification intensity, low power consumption, good control performance, long service life, high humidification efficiency, and uniform humidification; The disadvantage is that using tap water will produce white powder (scale) during the humidification process, causing secondary pollution, and the radiation is relatively high. Pregnant women should use it with caution.

　　Pure humidifier: Through molecular sieve evaporation technology, it can effectively filter and purify impurities in water, and the sprayed water mist is composed of pure water, which can completely solve the problem of "white powder". Using ordinary water does not produce "white powder" phenomenon, and the water quality is relatively clean, not easy to condense scale, and can also filter and purify the air. However, due to its fog free nature, the humidification efficiency is not as fast as ultrasonic humidifiers, and the price is generally slightly higher. Suitable for families with elderly and children, it can also prevent winter flu bacteria.

　　Electric heating humidifier (hot steam humidifier): The working principle is to heat water in a heating element to 100 ℃ to generate steam, and then use an electric motor to send out the steam. This is the simplest humidification method with the advantage of not producing white powder and not reducing indoor air humidity; The disadvantages are high energy consumption, safety hazards of steam burns, and easy scaling on humidifiers.

　　Cold mist humidifier: uses a fan to force air through a water absorbing medium (such as a wet film) to come into contact with and exchange with water, thereby increasing the relative humidity of the air. Its characteristic is that it can automatically adjust with the relative humidity of the air, that is, when the relative humidity of the air is low, the humidification amount is large, and when the relative humidity of the air is high, the humidification amount is low. The disadvantage is that the humidification capacity is relatively low (about 1/5 of that of ultrasonic humidifiers), and the noise is relatively high compared to ultrasonic humidifiers. However, this type of humidifier consumes less energy and has low noise.

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