Masks

People may choose to mask at any time. Masks protect against the spread of COVID-19 and other respiratory illnesses. People with respiratory symptoms (coughing, sore throat, sneezing, etc.), a positive COVID-19 test or who are at high risk for severe illness should wear a well-fitted, high quality mask. Options include:

  • N95 or KN95 masks/respirators – provides the highest level of protection.
  • A disposable mask under a cloth mask - offers some protection.

Masks filter particles and block droplets when you breathe, talk, sing, cough, or exhale. Wearing a respirator or mask reduces the number of germs that you exhale into the environment around you. Masks also protect from particles like smoke, air pollution, mold and droplets from other people's breath in the air you breathe in. Masks do not filter out harmful gases and vapors such as carbon monoxide or gasoline. It is important to consider the level of filtration and fit when choosing a respirator or mask.

Mask use and effectiveness

Mask mandates and requirements

Signs, posters and fact sheets