What role can the CN95 air conditioning filter play? Is it worth replacing?

Since the outbreak of the epidemic, there are several new words that everyone has paid attention to and discussed a lot. Among them, N95 masks must be very concerned, followed by CN95 air conditioning filters. Since February, many automobile companies have applied for the approval of vehicle regulations Level CN95 automotive cabin filter certification. So what exactly is it? Does it have anything to do with N95 masks?
Many people may not have heard of this term, nor do they understand the meaning behind this term.

The air conditioner filter element is a part with a similar function to the mask. Its main function is to filter the outside air entering the car through the air conditioning and ventilation system, reducing various harmful particles and gases entering the car, such as PM2.5, PM10, bacteria, allergens , nitrogen oxides, sulfur dioxide, formaldehyde, etc.
The automotive air-conditioning filter that has passed the CN95 certification of the vehicle specification level increases the above-mentioned filtration level requirements, specifically, the filtration efficiency for 0.3μm particles should be greater than or equal to 95%, which is the CN95 certification level.
In modern families, the air conditioner filter element has become an important part of each car, so Cuiyuan Auto Parts Company also reminds everyone to pay attention to the replacement of the air conditioner filter during the epidemic.