Kolkata Scientist invents pocket ventilator
Kolkata Scientist invents pocket ventilator During the Covid-19 problem, a researcher in Kolkata built the first pocket ventilator. According to reports, Dr. Ramendra Lal Mukherjee, an engineer by trade, devised a battery-powered pocket-sized ventilator that gives immediate assistance to people suffering from respiratory problems. He claims that it is simple to use and affordable. It … Read more