If you really need air, which I found was basically necessary on hot smoky days without AC, I put a MERV 13 20x20x4" HVAC filter in my window and drew air throu

If you really need air, which I found was basically necessary on hot smoky days without AC, I put a MERV 13 20x20x4" HVAC filter in my window and drew air through it with a box fan. This took out most of the small particles (verified with air quality monitors) and cooled off the inside of the house.