Breathe easier behind the wheel

Setting your car ventilation to “recirculate” considerably helps to reduce exposure to air pollution while driving.

Open car windows also quickly raise in-vehicle pollutant concentrations to on-road levels.

Keeping windows closed for over 30 minutes with several passengers raises carbon dioxide levels in cars, however. To prevent this, outside air should be pulled in every 10-15 minutes for 1-2 minutes.

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Car ventilation settings determine pollution exposure
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