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How Do Aerosols Behave? How Does the Covid-Virus Travel Through Air?

The air we breathe always contains solid particles or droplets and is therefore an aerosol. To assess whether coronavirus can travel through the air, it is necessary to understand what experts mean by “airborne.” This particular term refers to the transmission of a pathogen via aerosols (so-called “aerosol transmission”). Aerosols, also known as droplet nuclei, are small respiratory droplets that have the ability to remain suspended in the air. They are different to larger droplets that fall to the ground within a few feet.

How Do Aerosols Behave?

The air we breathe always contains solid particles or droplets and is therefore an aerosol. To assess whether coronavirus can travel through the air, it is necessary to understand what experts mean by “airborne.” This particular term refers to the transmission of a pathogen via aerosols (so-called “aerosol transmission”). Aerosols, also known as droplet nuclei, are small respiratory droplets that have the ability to remain suspended in the air. They are different to larger droplets that fall to the ground within a few feet.

However, in reality, the distinction between aerosols and droplets is not that clear. The separation between an airborne spread and droplet spread is actually a spectrum, especially when talking about small distances. A few studies suggest that the coronavirus, SARS-CoV-2, can exist as an aerosol in health care settings. The strongest evidence that airborne transmission of the coronavirus may be possible comes from a study published  in Nature.

How Does the Covid-Virus Travel Through Air?

The World Health Organization has maintained over the course of the pandemic that coronavirus is primarily spread by droplets from someone who is sneezing, coughing, or even talking within a few feet away. However, reports also suggest that coronavirus can be transmittable through particles suspended in the air, via the so-called aerosol transmission.

WHO recently updated its recommendation and included such transmissions, especially “indoor locations where there are crowded and inadequately ventilated spaces where infected persons spend long periods of time with others, cannot be ruled out.” You might want to protect yourself and your colleagues and consider an Air Purifier fighting Coronavirus for your workspace or office. Even if aerosols do not travel farther than most droplets, the rightfulness of “six-foot rule” for social distancing may depend on the circumstances. This is why it is crucial to wear masks and take proper care of the space that is used on a daily basis.

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