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The study measured the filtration efficiency of submicron particles passing through a variety of different materials. Share Via Email   |  A+A A- By ANI ATLANTA: Wearing a face mask can protect yourself and others from COVID-19, but the type of material and how many fabric layers used can significantly affect exposure risk, found a new study from the Georgia Institute of Technology. The study measured the filtration efficiency of submicron particles passing through a variety of different materials. For comparison, a human hair is about 50 microns in diameter while 1 millimetre is 1,00...

SRINAGAR: Love to wear fancy face masks to protect yourself from Covid-19? The types of material, fitting and the number of fabric layers used can significantly increase or decrease your risk of exposure to the deadly coronavirus, finds a new study. Materials, which combine fabric fibre density, a maze-like structure, and fibre surface chemistry can effectively reject submicron particles, which can stay in the air for hours and days and increase the risk of exposure, said researchers from the Georgia Institute of Technology, in the US. However, even in the same type of material, there can be ...

Properly fitted multilayer masks block 84 per cent of particles expelled by a person wearing it, while two people donning these types of masks can reduce transmission by close to 96 per cent, accordin

A submicron particle can stay in the air for hours and days, depending on the ventilation.