CO₂ monitor

CO₂: 547 ppm

Temp: 18.10 C

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<1000 ppm: Typical level for occupied spaces with good air exchange.

1000-1500 ppm: Start ventilation of the room.

1500-2000 ppm: Level associated with complaints of drowsiness and poor air. Ventilation recommended!

>1500 ppm: Level associated with headaches, sleepiness, and stagnant, stale, stuffy air. Ventilate!