家用空气净化器主要用于清除室内空气污染物（一般包括粉尘、花粉、异味、甲醛之类的装修污染、细菌、过敏原等）有效提高空气清洁度的产品。空气净化器通常由高压电路、负离子发生器、通风机、空气过滤器等系统组成。
Household air purifier is mainly used to remove indoor air pollutants (including dust, pollen, odor, formaldehyde and other decoration pollution, bacteria, allergen and so on) to effectively improve the air cleanliness of the products. Air purifier is usually made up of high voltage circuit, negative ion generator, ventilator, air filter and so on.
净化器运行时，机器内的通风机使室内、车内空气循环流动，污染的空气通过机内的空气过滤器过滤后，将各种污染物清除或吸附，然后通过装在出风口的负离子发生器将空气不断电离，产生大量负离子，被微风扇送出，形成负离子流，达到清洁、净化空气的目的。
When the purifier runs, the ventilator in the machine circulate the air in the interior and the car, and the polluted air is filtered through the air filter in the machine to remove or adsorb all kinds of pollutants, and then ionize the air through the negative ion generator installed at the outlet of the air outlet to produce a large amount of negative ions and be sent out by a micro fan to form a negative ion flow to clean and purify the air. .