What should you do when air quality reaches "unhealthy" levels?

Whether or not you feel physically impacted by the Canadian wildfire smoke leading to poor air quality in the Chicago area, there are some things you can do to protect yourself and those who may be at a higher risk of complications.

An air quality alert is in effect Thursday for the entire Chicago area. The poor air quality is expected to last at least until midnight, the NBC 5 Storm Team said.

The Illinois Department of Public Health released advice to residents looking to protect themselves when air quality is "red."

Here's what they recommend:

Stay indoors and monitor your breathing, especially if you have heart or lung disease, and keep windows and doors closed.

If your air conditioner has a fresh air intake, set

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