Wildfires burning in northern Minnesota have caused air quality to become extremely hazardous, especially over the second half of last week. Air quality is expected to plummet again over the next few days. Wildfires continue burning and for this reason, many people need help. Ways To Improve Indoor Air Quality During Wildfire Smoke Wildfire smoke can have both short and long-term impacts on your health. Here's what the EPA recommends when it comes to improving air quality during periods of heavy wildfire smoke in your region.