Nose masks prevent the Covid droplets from reaching our mouths and nostrils. It has been established that the primary way that the coronavirus spreads is when respiratory droplets produced by an infected person are inhaled or land on another person's face. The face masks, that we wear, can block these droplets.

When an infected person wears a mask and talks, coughs or sneezes, the nose mask acts as a barrier to keep virus-containing particles from escaping the infected person and landing on another person.

A new simulation from researchers at Florida Atlantic University illustrates just how effective face coverings can be in reducing the number of droplets that are dispersed into the air and the distance they travel. Without a mask, droplets travelled more than 8 feet. A bandanna cut the distance to 3 feet, 7 inches, and a folded cotton handkerchief reduced that distance even more, to 1 foot, 3 inches, the researchers note.

"There's no question; it's indisputable that wearing even a cloth face covering, cuts down substantially on the amount of virus that's shared by an individual,” explains Ron Waldman, M.D., professor of global health at the George Washington University (GWU) Milken Institute School of Public Health.

Studies have found that over 40 percent of people with coronavirus infections never develop symptoms of COVID-19. This makes it extremely difficult to detect who is a potential transmitter of virus, Waldman says.

We will protect one another and stop the spread of the virus if we all wear our nose masks and wear them properly, that is, if the nose mask covers the nose, mouth and chin properly. Only remove it when you are alone. Cloth nose masks must be washed after use. Disposable masks must be disposed of by putting them in plastic bags, tied properly and thrown into a bin.