Do Masks Increase CO2 Intake? element14 Fighting Germs
Aug 06, 2020 · 10,000 ppm (1.0%) Typically no effects, possible drowsiness. 15,000 ppm (1.5%) Mild respiratory stimulation for some people. 30,000 ppm (3.0%) Moderate respiratory stimulation, increased heart rate and blood pressure, 40,000 ppm (4.0%) Immediately Dangerous to Life or Health according to ACGIH
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