New York City is giving out free KN95 masks as the region is enveloped in smoke from Canadian wildfires.
But, how much do they help?
Here’s what to know, from the air quality index to masking up.
Air quality in NYC
In the New York City metropolitan area, the Air Quality Index, or AQI, is forecasted to hit 200 on July 16, according to the state’s website, indicating that the air is unhealthy. “Some members of the general public may experience health effects; members of sensitive groups may experience more serious health effects,” according to the AQI…