EVO-CO2V
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How to Test a CO₂ Monitor: A Real Fresh-Air and Breath Response Check
Can you quickly check whether a CO₂ monitor is responding normally? In this real EVO-CO2V test, the reading started near 400 ppm, rose to…
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Does Car A/C or Heat Add CO₂ to the Cabin? A Real No-Occupant Test
Does running a gasoline car’s air conditioner or heater add CO₂ to the cabin? In our real no-occupant test, EVO-CO2V measured 420 ppm after…
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Fresh-Air Mode vs Open Windows: Which Lowers Car CO₂ Faster? A Real Test
Which lowers high car cabin CO₂ faster: fresh-air HVAC or opening the windows? In our real EVO-CO2V test, both methods reduced CO₂ from above…
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How Fast Does CO₂ Drop in a Parked Car After Everyone Gets Out? A Real Test
How quickly does elevated CO₂ disappear after everyone gets out of a parked car? In our real-world EVO-CO2V test, cabin CO₂ fell from 3,344…
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Does CO₂ Inside a Car Come From Gasoline Combustion? Our Real-World Test
Does the CO₂ measured inside a car come directly from gasoline combustion? In our real-world driving test, EVO-CO2V measured 494 ppm CO₂ and 14.5…
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When Should You Switch from Recirculation to Fresh Air in a Hot Car? A Real CO₂ Test
In a real sun-heated vehicle test, we ventilated the cabin, used A/C recirculation for rapid cooling, and measured 1,034 ppm CO₂ with EVO-CO2V before…
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CO₂, Formaldehyde and TVOC in a Car: What We Measured in Three Real-World Tests
Our team compared CO₂, formaldehyde and TVOC readings across three real car-cabin conditions. The results showed that these measurements can behave very differently, including…
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Why Do Two CO₂ Monitors Show Different Readings? Our Side-by-Side Car Test
Our team placed two CO₂ monitors side by side inside a car. The readings began close together at about 697 and 710 ppm, but…
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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…