outdoors, distance from others, how long you interact with someone, and the likelihood of droplet spray. There are multiple factors that determine the infection risk of any given situation: indoors vs. Check out these tips for optimizing the fit and fabric of your mask.ĭo I need to wear a mask if I’m also distancing? Experimental studies, statistical analysis across countries, and individual case reports all provide evidence that widespread public use of non-N95 masks can slow the spread of disease. COVID-19 viruses are usually carried in the respiratory droplets described above, which are generally at least 10 times larger than the virus. Surgical masks and many common DIY mask materials block these droplets effectively. In everyday settings, however, the virus doesn’t travel alone. Yes, all masks help! Let’s talk about particle size. A micron is a millionth of a meter for reference, the width of a single human hair is generally anywhere between 17-180 microns. Using high-powered electron microscopy to take pictures of the virus, scientists have determined that the coronavirus is about 0.1 microns in diameter. Does it even matter if I wear a mask if it’s not an N95? Even if you’re not near someone, lower air circulation indoors means that small droplets can hang around in the air longer, so a mask is still protective. In any other indoor situation, yes! Masks are a barrier for respiratory droplets-small particles of saliva and mucus that we spray when we talk, breathe, cough, or sneeze. You’re more likely to be close to others when you’re inside, and wearing masks protects us from each other’s droplet spray. Not if you’re in your own home with those you live with. The answers aren’t always as easy as putting a mask on, but here’s our guidance based on current evidence. With everyone now required to wear masks in public spaces here in Pennsylvania, we’ve been hearing questions about mask usage, safety, and effectiveness. By masking up together, we slow the spread of the virus in our communities. It helps to keep you from infecting others. Scientific Journals of The Franklin Instituteįace masks are an important part of public health strategies to keep COVID-19 in check. A mask helps to protect you from getting infected.
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