car CO2
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Can a Car Air Freshener Reduce CO₂? Our Real Cabin Test
Our team tested whether a hanging car air freshener could noticeably affect cabin CO₂. During our real-world test, the reading still rose from about…
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Can Wearing Masks Reduce CO₂ Buildup in a Car? Our Real Test
Our team tested two people wearing masks inside a car to see whether masks would reduce cabin CO₂ buildup. During the real-world test, CO₂…
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Drinking Carbonated Soda vs Breathing Elevated CO₂: What’s the Difference?
We often hear the same question: if carbonated drinks contain CO₂, why should we care about elevated CO₂ in a car? The answer is…
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Can Plants Reduce CO₂ Inside a Car? Our Real Cabin Test
Our team placed several potted green plants inside a car to see whether they could noticeably limit cabin CO₂ buildup. During our real-world test,…
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Can Water Reduce CO₂ Inside a Car? Our Real Cabin Test
We placed a large open container of water inside a car to test whether ordinary water could noticeably limit cabin CO₂ buildup. In our…
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We Used Recirculation to Avoid a Truck Odor—Then Cabin CO₂ Rose to 1,573 ppm
We temporarily switched to recirculation while passing a strong-smelling truck. After we forgot to switch back, cabin CO₂ rose to about 1,573 ppm, then…
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Does Fan Speed Affect Car CO₂ in Fresh-Air Mode? Our 4-Person Test
Our team tested four people in the same car with fresh-air ventilation. At fan level 1, CO₂ rose from about 524 to 866 ppm…
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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…
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Does Singing Make Car CO₂ Rise Faster? What We Observed in Our 3-Person Recirculation Test
We tested three people singing inside a car with recirculation on. Cabin CO₂ rose from about 455 ppm to 1,406 ppm, but the result…