What Is The Main Difference Between An Air Purifier And A Fresh Air Blower?

Jul 01, 2021

It is understood that common air purification equipment mainly includes air purifiers, air sterilizers, fresh air fans, exhaust fans, and so on. These air purification equipment generally improve air quality by promoting the exchange of indoor and outdoor air, such as fresh air fans; the other type acts on indoor air through their own purification and sterilization systems, such as air purifiers. Air purifiers and fresh fans are both to improve or improve indoor air quality. Under this premise, let's briefly discuss what is the main difference between air purifiers and fresh fans?


Regarding air purifiers, they are usually caused by the three basic structures of motor, impeller, and filter. Its working principle is to drive the impeller to rotate under the action of the driving force provided by the motor, so that the air forms an airflow and passes through the air filter (mainly including HEPA high efficiency). Filter, honeycomb activated carbon filter, etc.) to achieve the effect of purifying the air by reciprocating circulation. The new fan uses the motor to make the air flow through the air inlet and outlet to achieve indoor and outdoor ventilation. In short, the motor introduces outdoor air into the room and discharges the indoor air to the outdoors under the action of the motor.


It is not difficult to find that one of the very obvious differences between using an air purifier and a fresh air blower is whether it can increase the oxygen content of the indoor air and reduce the carbon dioxide content. From this perspective, it can be simply considered that air purifiers promote internal circulation of indoor air and remove particulate pollutants, gaseous pollutants, and even external biological pollutants in the air. The new fan promotes the formation of indoor and outdoor circulation of air, mainly sucking the air with higher outdoor oxygen content into the room, and at the same time exhausting the air with higher concentration such as carbon dioxide out of the room, thereby achieving indoor and outdoor ventilation and purification of PM2.5.