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Masking Guidelines on Campus

Face coverings are no longer required in the classroom, at CMU events, or for CMU employees or students. Designated employees who regularly interact with guests, visitors and/or customers are encouraged to continue to wear masks indoors when interacting with members of the public and distancing cannot be achieved. Campus visitors and vendors are encouraged to wear masks when entering, exiting and moving about an indoor space.

We ask that all members of the campus community practice mindful masking, and respect that many in the campus community will choose to continue to wear a mask at all times. We must honor and respect one another's decision to do so (or not).

What should I know about wearing a mask?

Masking, hand washing, disinfection of surfaces, and staying in your residence when you are sick, can all help prevent you from getting sick from COVID-19.

Mask are made to contain droplets and particles you breathe, cough or sneeze out. These droplets and particles are what the COVID-19 virus use as a vehicle to infect others. By preventing these droplets and particles from spreading further into the air, masks help with what is called source control.

Wear a well-fitting mask.

Wear a mask that covers your nose and mouth and secure it under your chin. Make sure it fits snugly against the sides of your face. 

Does CMU have N95 masks available for students, faculty, and staff?

N95 medical-grade respirators and fittings are available for the campus population. Please reach out to [email protected] to schedule an appointment to pick one up.

Types of Masks

Cloth Mask

Example of a cloth mask

Benefits

  • Containing large respiratory droplets and aerosols breathed out
  • Being worn consistently due to increased comfort
  • Increased protection of OTHERS compared to not wearing a mask
  • Can be washed and re-used

Drawbacks

  • Not designed to filter small aerosols
  • Reliant on a tight fit to improve source control and protection
  • Not as protective as an N95 respirator

Paper Procedure Mask

Example of a paper procedure mask

Benefits

  • Containing large respiratory droplets and aerosols breathed out
  • Being worn consistently due to increased comfort
  • Increased protection of OTHERS compared to not wearing a mask
  • Multiple layers of non-woven material can increase protection vs. not wearing a mask

Drawbacks

  • Not designed to filter small aerosols
  • Reliant on a tight fit to improve source control and protection
  • Not as protective as an N95 respirator
  • Cannot be washed and re-used

Respirators (N95, KN95)

Example of a KN95 mask

Benefits

  • Containing respiratory droplets and aerosols breathed out
  • Increased protection of OTHERS compared to not wearing a mask
  • Increased protection for YOURSELF compared to not wearing a mask
    • Can provide increased protection compared to cloth and procedure masks if the respirator has a good seal to your face
    • Varying levels of particle filtration by type of respirator

Drawbacks

  • Requires a tight fit and seal to the face to maximize protection
  • Can be more difficult to breathe in compared to other mask options
  • Often more uncomfortable than cloth or procedure masks
  • Cannot be washed and re-used