Tag Archives: detrimental

N95 masks with valves ‘detrimental’ to curb the spread of COVID-19: Health Ministry letter to states

N95 masks with valves ‘detrimental’ to curb the spread of COVID-19: Health Ministry letter to states Masks like the N95 filters in clean air that the user inhales but the valves release exhaled, contaminated air back into the environment. In a letter addressed to the letter to all states and union territories, the Director-General of Health Services (DGHS)… Read More »