MYTH: An air purifier will protect you against COVID-19.
An air purifier will suck in and filter out any COVID-19 droplets that might be in the air.
As Dr McKay explained, it may be minimally helpful but there are no guarantees. Any effectiveness depends entirely on the size of the room and how many people are in it.
Instead, save your money and practise something far more effective: social distancing. That is, keep 1.5 metres away from other people. This is to prevent the spread of COVID-19 via viral droplets — basically, fluid that comes from our nose and mouth when we cough, sneeze or breathe.
“Some viruses, like measles, can just linger in the air for hours and hours. But what we find with coronavirus is that it needs to be contained within these droplets, and the droplets will normally fall within about a meter-and-a-half from somebody who is infected,” Dr McKay said.