Japan uses technology to capture micro-droplets when sneezing

In the clip, what the naked eye sees is large droplets of water with a diameter of about 1mm. It immediately fell to the ground. However, when observing by a camera with a high sensitivity, it is now possible to see sparkling particles appear.

It was a particle smaller than 10 micrometers fired after sneezing. These small particles are likely to drift away because they are very small and light.

 

When we maintain a lively conversation at very close distance between the two of us, we can see that when loudly there will be lots of small drops of water being shot out, it continues to drift between the speakers. and not easily lost.

We do not yet know how many small droplets of water will be spread from person to person by inhalation.

There are lots of viruses alive even in very small particles, in a loud voice or a loud breath. Tiny particles are created in these cases and when people nearby breathe them, they are at risk of becoming infected.

In addition, the likelihood that small droplets may increase the risk of infection in a well-ventilated environment has been increased.

The clip was filmed in a laboratory simulating the movement of microscopic droplets in a narrow environment.

In cases where there are about 10 people, the equivalent in a small room or in a large room. They will let a person cough, then measure that there are about 100,000 drops of water large and small flying out.

Micro particles still float in the air and stay at least 20 minutes later.

Images from the camera show that large blue or green droplets mostly fall to the ground in 1 minute, however, tiny particles (red) remain floating in the air and remain at least 20 minutes later.

Therefore, if air is not circulated, the microscopic droplets will remain in the environment and if infected, the virus will easily spread the disease. The only way to get rid of these droplets is to open the room doors so that the air is clear, thus reducing the possibility of virus infection if present in these microscopic droplets.

This new Japanese technology has shown that recommendations from health agencies to keep a safe distance and keep the room open to avoid covid-19 infection is completely accurate and effective.