Why snug fitting, multi-layered masks are the most effective

The best protection we have against getting COVID-19 is to get vaccinated. For added protection, we should wear masks indoors and in crowded outdoor settings to shield ourselves and those around us.

LAC, DPH

How well do face masks protect against COVID-19? - Mayo Clinic

Masks and Respirators

CDC : Oregon Health News Blog

Filtration Performance of Layering Masks and Face Coverings and the Reusability of Cotton Masks after Repeated Washing and Drying - Aerosol and Air Quality Research

N95 & KN95 Masks – PPE Supply Canada

Oxygen mask - Wikipedia

CDC : Oregon Health News Blog

COVID-19 Q&A: Masks are an important tool to protect against disease