Apr 6, 2020, 11:25:08 AM CDT Oct 29, 2021, 2:54:05 PM CDT

Do face masks prevent COVID-19?

The Centers for Disease Control and Prevention recommends wearing a mask in public to help prevent the spread of COVID-19.


As cases of COVID‑19 continue to spread, many families are looking for the best ways to stay healthy. One way to help prevent the spread of COVID‑19 is to wear a mask over your nose and mouth when around others in public.

Learn how masks can help prevent the spread of COVID‑19 and see more ways to keep your family safe.

How do face masks protect against the spread of COVID‑19?

Parent helping child with maskCOVID‑19 spreads from person-to-person, meaning that it can spread when an infected person coughs, sneezes or talks in close contact with another person. To help prevent this spread, the Centers for Disease Control and Prevention (CDC) recommends wearing a face mask to cover your nose and mouth when around others in the community.

"The main purpose of using a mask is what we call source control," says Carla Garcia Carreno, M.D., Pediatric Infectious Disease Specialist at Children's Health℠. "This means that the person who is wearing a mask will prevent spreading respiratory particles into the air and to other people."

Wearing a face mask is an additional step that can help prevent the spread of COVID‑19. It's important to still take other precautions, even when wearing a mask.

"Wearing a mask is a small simple ask, but it can help saves lives," says Jeffrey Kahn, M.D., Director of Infectious Disease at Children's Health and Professor at UT Southwestern. "One of the big challenges of COVID‑19 is that individuals can shed infectious virus before they become symptomatic, and some infected individuals may never become symptomatic. Asymptomatic infection is especially common in children, and having your child wear a mask will potentially protect individuals that come in contact with your child."

Who should wear a face mask – and when?

The CDC recommends that all people ages 2 and older wear a face mask when in public –indoor places. Wearing a mask is especially important for people who are not fully vaccinated. With the highly contagious Delta variant, the CDC also recommends that fully vaccinated individuals continue to wear a mask when in public indoor places in areas that have high transmission rates. In general, you do not need to wear a face mask outside, unless you’re in a crowded outdoor setting in an area with high COVID-19 cases.

When wearing a mask, make sure it:

  • completely covers your nose and mouth
  • fits snugly on your face and is secured
  • includes multiple layers of fabric
  • is breathable
  • can be washed and machine dried without changing shapes

When removing your mask, avoid touching your eyes, nose and mouth and wash your hands immediately after removal. You should also routinely wash your face mask after use.

How to properly wear a mask

Where can I find a face mask?

Face masks are widely available in stores and online. The CDC has information on the types of masks you can use to protect yourself and others from COVID‑19, such as cloth and disposable masks. See more information about types of masks and choosing one that works for you.

What are other ways to prevent the spread of COVID-19?

The best way to prevent COVID-19 is to get vaccinated. Even if wearing a mask in public, make sure your family is practicing these everyday precautions to prevent the spread of COVID‑19:

  • Practice proper hand hygiene (see tips for hand washing)
  • Avoid touching your face with unwashed hands
  • Avoid close contact with people who are sick
  • Put distance between yourself and other people
  • Cover your coughs and sneezes with a tissue and throw away tissue in trash after sneezing
  • Disinfect frequently touched objects and surfaces daily with a household cleaning spray or wipe
  • Stay home if you are sick

COVID‑19 vaccines are available for everyone ages 5 and over to prevent the spread of the virus. Taking these precautions are a critical step in preventing the spread of COVID‑19, especially as new variants spread.

Learn more about COVID‑19

Children's Health is committed to remaining a trusted source of health information and care for you and your family during this time. See tips to help your child adjust to wearing a face mask and more resources to keep your family healthy at the Children's Health COVID‑19 hub.

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communicable disease, coronavirus, infectious diseases, virus

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