start of the year, the situation is rather special, the epidemic spread. A lot of people say to you: this time there is manifested the importance of the car, the car is the safest way to travel. Nothing wrong with these words.
embodiment the vehicle interior air flow is primarily external circulation. Circulatory state using external air outside the fan is drawn into the interior of the vehicle, that is outside the vehicle and the vehicle airway is in circulation. Sometimes congestion, even if there are still tightly shut tail odor is opened outside the loop. In contrast, the inner loop is turned off by the gas flow passages inside and outside the car, to prevent external harmful gases into the interior.
During the epidemic, both ventilation needs, but also to prevent the outside air, so some businesses large-scale promotion of such things: the equivalent of car masks, in ambient air and at the junction of the interior space, the outer protection of the car is not circulating air pollution: vehicle PM2.5 filter.
This is not a new thing, the haze serious, such a filter is used to start the anti-fog haze, ldquo; 2.5rdquo; mean diameter of 2.5 microns or more can filter air suspended particles , PM2.5 masks empathy. N95 masks mean 95% or more can prevent suspended particles 3 microns.
and the virus is typically 0.1 microns in diameter. You might say useless, but the virus in the air is often attached to other objects, it is what we call an aerosol droplets, the size of these things are common in about 5 microns. These things have been absorbed by the body, it is easy to cause infection. Otherwise, the virus is unlikely to be able to stand alone in the air.
Conclusion word, PM2.5 filter can play a role in blocking the virus aerosol.
while ordinary air conditioning filter typically PM10 level, which for particles 5 microns, the approximately equal unimpeded. If you do not wear a mask, then this case in the car, still possible inhalation of droplets with the virus.
Many owners because of this, after the installation of a filter PM2.5, driving in the car outside the loop, and secure enough to not wear a mask, which is not necessarily correct. The problem lies in, our car lot is not completely sealed.
This cab car comes to sealing.
Now since many new cars insulation, noise, air quality and other considerations, the sealing performance is getting better cab; but there are many older cars, because when the production follows different standards, so the seal properties have not kept pace, this is one;
many of the vehicle cab sealing strip there is a certain degree of aging, and the porosity is too large, resulting in poor air tightness inside the car, which is its two.
between the glass untidy hole slots, resulting in incomplete closing, which is Third.
Although PM2.5 filter greatly reduces the likelihood of a virus particle of the car, but not 100 percentage security. For safety considerations, outside the car, or try to wear a mask as well.