For what Air Quality Index (AQI) level would a voluntary N95 mask notification be sent?

A voluntary N95 mask notification is typically issued when the Air Quality Index (AQI) reaches a level of 150 and above. This level indicates that the air quality is considered unhealthy for sensitive groups, such as individuals with pre-existing health conditions, children, and the elderly. In this context, "unhealthy for sensitive groups" means that those not in sensitive categories may not be affected, but it is still advisable for everyone to take precautions, especially during prolonged exposure.

At an AQI of 150, the potential for health effects increases, making it prudent for individuals to consider wearing an N95 mask to protect against particulate matter and other pollutants. This serves as a proactive measure to enhance personal safety and reduce the risk of respiratory issues that can arise from exposure to deteriorating air quality.