recirculation mode
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Does Lexus AUTO Air Intake Switch to Fresh Air at High CO₂? Our Real Test
Many vehicles offer an automatic air-intake mode that can switch between recirculated cabin air and outside air. But what happens when cabin CO₂ becomes…
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Does Automatic Car Climate Control Switch to Fresh Air When CO₂ Rises? Our Real Test
Our team monitored cabin CO₂ while the vehicle climate system was operating in automatic mode. During the recorded sequence, CO₂ rose from about 2,980…
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Car CO₂: What Happens When You Switch From Recirculation to Fresh Air? A Real Driving Test
What happens to cabin CO₂ when a car switches from recirculation to fresh-air mode? In this real driving test, the EVO-CO2V reading fell from…