17 ms·
At 1000 ppm of CO2 human cognition starts to decline. At 2000 ppm you're looking at severe cognitive decline, drowsiness, headaches. Letting it get that high is
by magnamerc 7y ago
At 1000 ppm of CO2 human cognition starts to decline. At 2000 ppm you're looking at severe cognitive decline, drowsiness, headaches. Letting it get that high is dangerous just on the basis of CO2 concentration alone.