vehicle air quality
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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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How Fast Does CO₂ Build Up in a Car? Real-World Test With 1–5 People
How quickly does CO₂ rise inside a car as more passengers get in? We tested the same vehicle with 1 to 5 occupants and…