What is the function of the in-car PM2.5 filter?

2 Answers
MacAlejandro
07/24/25 1:33pm
The function of the in-car PM2.5 filter is to filter PM2.5 particles from the air. Air pollution is becoming increasingly severe, especially particles with a diameter of 2.5 micrometers or smaller in the air, which can be absorbed into the human body and pose a threat to health, particularly for sensitive individuals. To meet market demands, various car manufacturers have successively produced vehicles equipped with PM2.5 filters. In-car PM2.5 filters are divided into two types: built-in and external. The built-in type is integrated into the car's air conditioning system, while the external type is integrated into the central console of the front seats. PM2.5 refers to particles in the atmosphere with a diameter of 2.5 micrometers or smaller, also known as respirable particles. Their diameter is less than one-twentieth the thickness of a human hair.
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LeSamuel
08/11/25 7:33am
This PM2.5 filtration device is incredibly useful in the car, helping to block those ultra-fine dust particles in the air and keeping the interior air cleaner. I usually drive to work in the city, and during traffic jams or smoggy days, it's a lifesaver—filtering out over 99% of PM2.5 particles, making it much easier to breathe, especially in heavily polluted urban areas. Since installing it, my wife's allergy symptoms have significantly reduced, and we no longer worry about strong odors or coughing in the car. Remember to check the filter regularly; replacing it every six months is simple and hassle-free. This device is also great for the elderly and children, making the car environment fresher and driving more reassuring.
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