"US Braces for Air Quality Alerts as Canadian Wildfires Spread Smoke"

Intense wildfires in Canada have led to air quality alerts in the United States, with smoke from the fires traveling across the border. The smoke can cause hazy skies, reduced visibility, and irritate the lungs, particularly for sensitive groups such as children, older adults, and people with lung diseases. To stay safe, it is recommended to stay indoors, wear an N95 mask when going outside, and run air conditioning on a recirculation setting. People with underlying lung or heart disease should consider investing in air purifiers for their homes.