outside air
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How Different Is CO₂ Inside and Outside a Car? Our Real 1,500 vs 450 ppm Test
Our team measured about 1,500 ppm CO₂ inside a car and about 450 ppm in the outside air beside the same vehicle, a difference…

Our team measured about 1,500 ppm CO₂ inside a car and about 450 ppm in the outside air beside the same vehicle, a difference…