How well do face masks protect against COVID

There is a problem with information submitted for this request. Review/update the information highlighted below and resubmit the form.

Sign up for free, and stay up to date on research advancements, health tips and current health topics, like COVID-19, plus expertise on managing health. Click here for an email preview.

ErrorEmail field is required

ErrorInclude a valid email address

To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail.

You'll soon start receiving the latest Mayo Clinic health information you requested in your inbox.

Please, try again in a couple of minutes