Clearing The Air
๐ค๐๐ถ๐ฐ๐ธ ๐๐ต๐ฎ๐ป๐ด๐ฒ ๐ง๐ถ๐ฝ ๐ผ๐ณ ๐๐ต๐ฒ ๐ช๐ฒ๐ฒ๐ธ: Closing the windows and choosing the recirculation setting of the car’s ventilation system reduces particulate matter concentration. The recirculation button simply takes the air from inside the car and recirculates it in the cabin instead of pulling polluted air from outside.