Ventilation Rate Procedure

Fixed OA requirements:

• Per person/per m

• Varies with occupancy type

The standard prescribes the rate at which outdoor air must be delivered to a space Example: Office space 8 l/(s person) (15 cfm/person).


• Presumed CO2 concentration < 1000 ppm

• Sufficient outdoor air to remove odors

The standard uses CO2 as indicator of TAQ since CO2 is “marker” for human contaminants Typical quantities 8-10 l/(s person) (15-20 cfm/person)

Posted in Fundamentals of Heating. Ventilating, and Air-Conditioning

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