Residents across Montana are dealing with a thick haze of wildfire smoke, and many of the iconic mountains ranges that attract visitors from around the world are barely visible. Surprisingly, the smoke isn't even from fires in Montana. The Montana Department of Environmental Quality (DEQ) is already reporting "unhealthy" air quality in several parts of the state. 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.