The activated carbon can filter the particles of diameter 2-3 microns and volatile organic compounds (VOC) in the car or house.
HEPA filter further more, can hold up the particles of diameter 0.05 micron to 0.3 micron effectively.
According to the Electron microscopy (SEM) images of novel Corona-virus (COVID-19) released by the China Center for Disease Control and Prevention, its diameter is only 100 nanometer.
The virus is mainly transmitted by droplet, so what floats in the air are more droplet containing the virus and droplet nuclei after drying. The diameter of droplet nuclei is mostly 0.74 to 2.12 micron.
Thus, the air purifiers with HEPA filter, activated carbon filter can work on corona virus.
As can be seen from the figure above, there are significant differences in the filtering effect of the filters on particulate matter, and the well-known HEPA H12/H13 high efficiency filter on particulate matter can reach 99%, even better than the N95 mask in filtering 0.3um particles. Air purifiers equipped with HEPA H12/H13 and other high-efficiency filters can filter viruses and reduce the spread of viruses through continuous circulating purification, especially in crowded environments. However, attention should be paid to the regular replacement of the filter of the air purifier to ensure the filtering effectiveness of the filter.
In addition, the air purifier is an internal circulation, and the window ventilation should not be less every day. It is recommended that the Windows be ventilated at least twice a day at regular intervals, while the air purifier can be kept running.
New models of airdow air purifier mostly contain 3-in-1 HEPA filter.
1st filtration: Pre-filter;
2nd filtration: HEPA filter;
3rd filtration: Activated carbon filter.
The air purifier with 3-in-1 HEPA filter can effectively work on virus and bacteria.
Strongly recommend you choose our new model air purifier for home and car.
Post time: Aug-09-2021
