Face coverings limit the volume and travel distance of expiratory droplets dispersed when talking, breathing, and coughing. A face covering without vents or holes will also filter out particles containing the virus from inhaled and exhaled air, reducing the chances of infection.
One of the most common masks used today is surgical masks. These masks are disposable, loose-fitting face masks that cover your nose, mouth, and chin. You can read more about surgical masks via http://thehelloface.com/.
They’re typically used to:
- protect the wearer from sprays, splashes, and large-particle droplets
- prevent the transmission of potentially infectious respiratory secretions from the wearer to others
Surgical masks can vary in design, but the mask itself is often flat and rectangular in shape with pleats or folds. The top of the mask contains a metal strip that can be formed on your nose.
Elastic bands or long, straight ties help hold a surgical mask in place while you’re wearing it. These can either be looped behind your ears or tied behind your head.
Surgical masks can protect against infection with various types of viruses. Not only does the mask filter out smaller aerosol particles, but also can help trap infectious respiratory secretions. These masks prevent large droplets of bodily fluids that may contain viruses or other germs from escaping via the nose and mouth. They also protect against splashes and sprays from other people, such as those from sneezes and coughs.