Carbon Dioxide Emission from the Human Body vs. Activity

Calculate carbon dioxide emission from persons based on their activity level. This tool helps determine CO2 concentrations in rooms with people and can be used to modulate ventilation system capacities.

Activity Levels Reference

ActivityRespiration (m³/h)CO₂ Emission (m³/h)
Sleep0.30.013
Resting/Low Activity0.50.02
Normal Work2-30.08-0.13
Hard Work7-80.33-0.38

Note: 1 m³/h = 0.5886 ft³/min (cfm)

Calculator

Inputs

Results

Total CO₂ Emission-- m³/h
Total CO₂ Emission (CFM)-- ft³/min