Face covering/mask requirement on the Washington University Medical Campus

All WashU faculty, staff and students and all visitors are required to wear a face covering while on the Medical Campus. This policy includes faculty, staff, trainees, contractors, vendors and any other visitors.

The requirements below apply to non-clinical areas and activities.

For clinical work, patient care providers should follow PPE guidelines as outlined by their clinical areas.

Importance of masks

Public health and other data strongly supports that universal masking substantially reduces transmission of COVID-19. The main purpose of the mask is to prevent the wearer from expelling small virus-containing droplets of saliva or mucus into the air and infecting others. Wearing a mask reduces the likelihood that an infected individual could spread the virus to people around them (colleagues, co-workers, friends, etc). This is especially important for infected people who may be asymptomatic. It also protects the wearer. Therefore, to reduce the spread of the virus, and to protect the health of all our faculty, staff, and trainees, WashU School of Medicine is requiring universal masking.

Who must wear a mask

All faculty, staff, trainees, contractors, vendors and other visitors must wear a mask.


  • If you have a medical condition that may preclude mask wearing, please contact Occupational Health if you are faculty or staff, or student health if you are a student to discuss your condition and potential accommodations.
  • Children under two do not have to wear a mask; however, in general, children shouldn’t be on the campus at this time.

How to wear your mask

  • The face covering/mask should fit snugly cover the wearer’s mouth and nose.
    Masks should be worn when inside WashU buildings, garages, and the link system.
  • Don’t double mask. Double-masking complicates the doffing process and creates increased risk for exposure if not removed correctly. Wearing a cloth mask over any medical mask is discouraged. Double-masking can cause any medical mask (surgical/isolation or N95) underneath to become dislocated from its safe position or damp as a result of a tighter fit to the mouth. Cloth masks are not medical grade, but they are appropriate for when you are out in public, such as at the grocery store.

Wear your mask properly

To put on your mask

  • First wash your hands before picking it up by the ear loops or ties.
  • The mask must cover your nose and mouth at all times.
  • Avoid touching the outside of the mask with your hands. Do not adjust it throughout the day or pull it down to talk.

To take off the mask, repeat the process

  • Clean your hands first and unfasten the ties or ear loops.
  • Do not touch the front of the mask.
  • Wash your hands again after handling the mask.

Launder cloth masks each day after use.

Learn more about how to wear and care for masks »

Where and when to wear your mask

  • In cubicles: If you work in an area where the person in a neighboring cubicle is less than 6 feet away, you must wear a mask at all times. If you can maintain physical distancing (more than 6 feet) from colleagues and others in the office, you do not face each other, and your workstation/cubicle is higher than your head when sitting, you are not required to wear a mask while in your work area.
  • In common areas: Wear a mask when leaving your immediate work area, such as visiting the cafeteria or restroom, attending in-person meetings, and walking to and from your car, through links, buildings and in garages.
  • While eating: You may remove your mask while eating. Be careful to keep at least 6 feet between you and other personnel.
  • When you’re alone: If you are alone in a room (e.g. your office), you may remove your mask.
  • While outdoors: Masks are not required outdoors unless you will be within 6 feet of others. For example, if you are walking on a busy sidewalk where you cannot separate from others by 6 feet, you should wear your mask.

Where to get masks

  • You may bring your own mask from home.
  • The School of Medicine will provide cloth masks if needed for those who work outside of clinical areas. Limited masks may be available at campus-access screening stations.

Keeping things clean

  • Wash cloth masks before first use and after every subsequent use. The navy blue WUSM-provided masks should be hand-washed.
  • Wash your hands before putting on the mask and after taking it off.


This public health policy will be strictly enforced. Violations of the policy may result in corrective and/or disciplinary action, including suspension or dismissal.

CDC guidance

Washington University endorses the CDC guidance on wearing face coverings in public settings. https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/cloth-face-cover-guidance.html

Preventing eyeglass fogging

graphic of hands washing eyeglasses with soap and water

It’s a common problem: Wearing a face mask can make your eyeglasses fog up. Here’s some advice to help avoid that problem. The tips come from two doctors and are published in the journal Annals of the Royal College of Surgeons of England.