Here’s why you should stay indoors on smoky days -- and how to stay safe outdoors

Dr. Kate Sutherland, a pulmonologist at Saint Alphonsus Medical Group in Boise, Idaho explains the first four air quality indexes and precautions people should take when heavy smoke looms in the air.
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Dr. Kate Sutherland, a pulmonologist at Saint Alphonsus Medical Group in Boise, Idaho explains the first four air quality indexes and precautions people should take when heavy smoke looms in the air.