"Mask Up: Protecting Yourself from Wildfire Smoke and Unhealthy Air"

Health experts recommend using N95 or KN95 masks to protect against dangerously polluted air caused by Canadian wildfires. Simple cloth masks, scarves, and other cheap alternatives are not effective at filtering out small particles in smoke. Masks should be worn correctly, covering the nose and chin tightly on the face. Masks should be thrown out after a few uses, and N95 masks are not meant to be reused. People with respiratory illnesses may need to take special health precautions, including evacuating an area that’s under an air-quality alert. It is also recommended to stay indoors as much as possible and use an air purifier with a HEPA filter.