Taking the Pulse of a Building

The Australian Standard for ventilation is a design requirement and building owners need to be compliant on day one of occupancy.

A key consideration for operation in many commercial buildings today is how are you going to verify performance if you are not measuring and controlling the outdoor airflow around the clock?


External variations in wind and stack pressures on air handling systems, will often result in widely fluctuating outdoor air intake flow rates if not measured and controlled. This will impact the building pressurisation and indoor air quality.

Thermal dispersion airflow measurement using two bead‐in‐glass thermistors. Image courtesy of EBTRON.

Fig. 1 Minimum Outdoor Airflow Control on Return Air Systems

A Breath of Fresh Air

Measuring outdoor ventilation is an engineering control to minimise the risk to people in the workplace from airborne disease including COVID-19.

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