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Are air filters capable of killing coronavirus?

air filters

New Delhi: An air filter can combat other causes of respiratory problems and improve the overall air quality in your home, but a standard HEPA filter cannot capture and destroy something as small as a coronavirus. Even if the virus is caught, it will probably survive for some time.

A PECO air filter can make a difference, but only in a limited way. The method that PECO air filters use to remove particles from the air can trap incredibly small items. According to Dr. Snell, “a PECO air filter could remove a virus from the air given its size,” but he continues, adding that “this is not likely to have much of an impact, considering that [the coronavirus] lives on surfaces for an extended period of time. ”

Coronavirus is spread by person-to-person contact and comes in contact with contaminated surfaces. The best option to combat the coronavirus is to avoid contact with anyone who may be infected and to use strict hygiene practices. Wash your hands frequently and wear a properly rated face mask in places where you may be exposed to the disease.

Understand the science of air filters and viruses

Air purifiers use fans to extract air and pass it through a filter before expelling the purified air from the other side. They are particularly effective in removing odours and large particles from the air. If you suffer from pet allergies, for example, an air purifier can help capture dandruff and reduce your symptoms. On the other hand, there is a limit to what an air purifier can capture.

Live updates for coronavirus are here

Even the most powerful air purifiers can only capture particles as small as 0.1 microns or more, and the vast majority of air purifiers will only capture particles of 0.3 microns or more. A micron is a unit of measurement equal to one-millionth of a meter, sometimes called a micrometre.

The main culprits for poor indoor air quality are greater than this size limit; Mold, pollen, and pet dander are larger and can be trapped and removed by a standard HEPA filter. That slight margin of error is the reason why air purifiers claim an effective rate of 99%.

Viruses are about 100 times smaller than bacteria and typically range from 0.004 to 0.1 micron in size. This means that even the most powerful air filters would have a hard time purging a virus from the air.

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