A study determines the effectiveness of plastic face masks in protecting against corona

A new study warned that plastic shields do not protect against Corona virus alone, and can allow droplets to enter the airways and thus transmit or catch the infection.

And researchers from the "Riken" Center in Japan conducted a simulation using the fastest supercomputer in the world, according to the British "Mirror" website.

The simulation found that nearly 100% of airborne droplets less than 5 μm in size leaked through a plastic visor, while 50% of the larger droplets found their way into the air.

Team leader Makoto Tsubukura said: “Judging by the simulation results, the effectiveness of these plastic shields in preventing the spread of drops from the mouth of an infected person is limited compared to a muzzle.

This is especially true for small droplets less than 20 μm in size.

The researchers suggest not wearing face masks except outdoors, or in well-ventilated indoor areas.