Mask guidance for Massachusetts residents
Wearing a mask provides protection against COVID and other viruses, especially when indoors or in crowded spaces. Consider wearing a mask especially if you have a weakened immune system, if you are at increased risk for severe disease because of your age or an underlying medical condition, or if someone in your household has a weakened immune system or is at increased risk for severe disease.
How to select and wear a mask
The CDC recommends that you wear the most protective mask you can that fits well and that you can wear for as long as you need it.