Wildfires burning across parts of Los Angeles filled the air with smoke. Here's how to keep everyone in your life safe.

Ministry says it's an effort to prevent the transmission of seasonal respiratory illnesses like RSV, flu and COVID-19.

It filters 95% of particulate matter, just like the N95 mask, says Dr. Nina Shapiro, a pediatric ear, nose and throat specialist at Westside Head and Neck in California. KN95 masks are the Chinese ...