According to the CDC, "maintaining 6-feet social distancing remains important to slowing the spread of the virus. CDC is additionally advising the use of simple cloth face coverings to slow the spread of the virus and help people who may have the virus and do not know it from transmitting it to others."
Face masks are not meant to provide 100% prevention of, or protection from, the transmission of COVID-19. It is important to maintain effective preventative measures, like proper social distancing, hand washing, and disinfection efforts. Face coverings are recommended as an additional precaution to slow the spread of coronavirus.