2022年1月15日 · Evidence shows that mask-wearing can help reduce spread of COVID-19 infections, keep waves of serious illness from overburdening our hospitals, and save lives. Masks also help protect us against other viruses that spread through the air, such as colds and flu.

2024年3月1日 · Wearing a mask can help lower the risk of respiratory virus transmission. When worn by a person with an infection, masks reduce the spread of the virus to others. Masks can also protect wearers from breathing in infectious particles from people around them.

2022年7月5日 · Wearing a face mask is a vital measure to prevent the spread of COVID-19, even if you are fully vaccinated. While surgical and cloth masks offer some protection, N95s and KN95s masks, called...

2022年3月30日 · Wearing a mask is one way to reduce the spread of COVID-19. There are many types, including surgical masks, cloth masks, and respirators.

2022年1月14日 · CDC has updated our consumer webpage describing the types of masks and respirators used to prevent the transmission of SARS-CoV-2. Masking is a critical public health tool to prevent the spread of COVID-19, and it is important to remember that …

2023年5月11日 · Masks and respirators are effective at reducing transmission of SARS-CoV-2, the virus that causes COVID-19, when worn consistently and correctly. Some masks and respirators offer higher levels of protection than others, and some may be harder to tolerate or wear consistently than others.

2024年5月16日 · Masks help reduce the spread of respiratory illnesses by protecting you from airborne droplets and protecting others if you are ill. Here's everything you need to know, including the different...

Masks should be used as part of a comprehensive strategy of measures to suppress transmission and save lives; the use of a mask alone is not sufficient to provide an adequate level of protection against COVID-19.

2024年1月11日 · The mask conforms to your face without gaps — it is important that most of the air you breathe in and out flows through the mask rather than around the mask through gaps at the sides, top or bottom. Your cloth mask is made from several layers of tightly woven fabric and fits well over your nose and mouth to be an effective filter.

2023年11月4日 · For people at high risk, the CDC suggests you wear a mask that provides you with the most protection possible. Wear a mask while in public indoor spaces when your area has a high number of people with COVID-19 in the hospital. Check with your doctor to talk about when to wear a mask at other times.