When air quality is "Hazardous"

Grasping the Severity of Hazardous AQI

An Air Quality Index (AQI) exceeding 300 is termed "Hazardous." At this extreme, there's a health warning of emergency conditions. The entire population is likely to be severely affected.

HEALTH RECOMMENDATIONS
How to protect from Hazardous pollution
Wear a mask outdoors and indoors GET A MASK		Run an air purifier GET AN AIR PURIFIER
Close your windows to avoid dirty outdoor air GET A MONITOR		Avoid outdoor exercise

Protective Measures for Hazardous Air Quality

Whan air quality is hazardous, everyone is at high risk of experiencing strong irritation and negative health effects that could trigger respiratory and cardiovascular illnesses.

Avoid exercise and remain indoors. Avoid outdoor exercise. It is advisable to wear a pollution mask outdoors and indoors as well. Air purifiers should be turned on. Heed every local health advisory, and ensure homes are sealed effectively against the polluted air.

Join the movement!

Get a monitor and contribute to air quality data in your city

BECOME A CONTRIBUTOR

How can I protect myself when air quality is hazardous?

Get a free air quality app for real-time air quality alerts and forecasts and consistently monitor your air quality.
Help increase the amount of ground-level monitors by becoming an air quality contributor. Contribute to your community’s outdoor air quality data.
Shut doors and windows and set the HVAC to recirculate mode.
Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask. Note that “Hazardous” pollution levels require a mask even when indoors.Run a high-performance air purifier to filter pollutants, particles, gases, and other contaminants.