Share a reading

Step 3 of 4: Your CO₂ number and the room.

For Sacramento International Airport (SMF), Sacramento

Your reading

CO₂ in ppm*

A typical room sits 400-2000 ppm. Outdoor air is around 420.

How full was the room?

Pick the closest 5% bucket.Time of day (optional)

Photo (optional)

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0 / 500. No personal info, please.