You need to protect yourself from the coronavirus co·ro·na·vi·rus : any of a family (Coronaviridae) of single-stranded RNA viruses that have a lipid envelope studded with club-shaped projections, infect birds and many mammals including humans, and include the causative agents of MERS, SARS, and COVID-19 if you go out in public. And this includes avoiding exposure to even distant sneezes and coughs. According to breaking MIT research, “The next time you feel a sneeze coming on, raise your elbow to cover up that multiphase turbulent buoyant cloud you’re about to expel. “When you cough or sneeze, you see the droplets, or feel them if someone sneezes on you,” says John Bush, a professor of applied mathematics at MIT, and co-author of a new paper on the subject. “But you don’t see the cloud, the invisible gas phase. The influence of this gas cloud is to extend the range of the individual droplets, particularly the small ones.” The new limit of safety is 25 feet from someone who is ill with COVID-19 \ ˈkō-vid-nīn-ˈtēn : a mild to severe respiratory illness that is caused by a coronavirus (Severe acute respiratory syndrome coronavirus 2 of the genus Betacoronavirus), is transmitted chiefly by contact with infectious material (such as respiratory droplets), and is characterized especially by fever, cough, and shortness of breath and may progress to pneumonia and respiratory failure. and coughs or sneezes. You may not be able to avoid this exposure so a face mask 1. A barrier device used in infection control to prevent health care providers from breathing or coughing on patients. It is also employed to prevent patients' sneezes and sputum from making contact with the health care provider's face or eyes or from being inhaled. 2. A device that covers the mouth, nose, or both of a patient who requires positive-pressure, noninvasive ventilation or continuous positive pressure-ventilation (CPAP). becomes a necessity. Here we show how far a sneeze can spread droplet. We also show one of the easiest to make do it yourself (DIY) protective face mask.