With all the fires burning around us, air quality is horrid. As I write, both Moscow and Lewiston are in the hazardous range, and Pullman is only marginally better.
For those with central air or furnaces, you can use the blower on the system to help filter your air. The thermostat should have a fan setting that you can switch from 'Auto' to 'On'. This will start pulling air through the filter and clean it for you. The cost of running the system in this mode is pretty negligible.
For those of you challenged by the dust at harvest time, this will work, too.
Be safe, everyone.