If the air quality index (AQI) is: | Take these steps: |
Less than 50 (Good) | Safe to be outdoors |
51 to 100 (Moderate) | Safe to be outdoors |
Limit time outdoors to no more than a few hours per day |
Wear your N95, KN95, or P100 mask, especially outdoors* |
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101 to 150 (Unhealthy for sensitive groups) | Limit time outdoors to no more than a few hours per day |
Try to stay indoors until the air is safer |
Keep windows and doors closed |
Use an indoor air filter* |
Wear your N95, KN95, or P100 mask,especially outdoors* |
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151 to 200 (Unhealthy) | Try to stay indoors until the air is safer |
Keep windows and doors closed |
Use an indoor air filter* |
Wear your N95, KN95, or P100 mask, especially outdoors* |
Stay in a clean air room* |
Evacuate to a place with safer air |
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>200 (Very unhealthy) | Only go outside if necessary |
Keep windows and doors closed |
Wear your N95, KN95, or P100 mask, especially outdoors* |
Use an indoor air filter* |
Stay in a clean air room* |
Evacuate to a place with safer air |
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