Researchers at the Indian Institute of Technology (IIT), Bombay, have developed a technique for coating face shields with a hydrophobic layer to improve their efficiency.
Face shields act as primary barriers to airborne disease-carrying droplets. But these simple face shields are made from plexiglass plastic or polyethylene terephthalate.
Plastic is hydrophilic; and tiny water droplets tend to stick to its surface. Studies have shown that the SARS-CoV-2 laden respiratory droplets can survive on different surfaces for a few hours to a few days.
Maharashtra