Face Masks

Particulate matter, also known as particle pollution or PM, is a term that describes microscopic solid particles and liquid droplets, which are suspended in air. PM2.5 are particles or droplets that are two and a half microns or less in width. One micron is equivalent to one one-thousandth of a millimetre or 1 micron (micrometer) = 1/1,000,000 of a metre...

Face masks are a simple and cost effective way to help decrease Covid-19 and other airborne virus transmission, with the ultimate goal of saving lives. According to government health departments, wearing a face mask in public has been shown to reduce the spread of coronavirus, including from those who are pre-symptomatic. However, some face masks are more effective than others...