Air Flow Capture Hood

Air Flow Capture Hoods are important instruments for assessing proper ventilation and temperature control of office spaces during hot summer days.  These meters measure air flow from diffusers and grilles use this data to produce readings in CFM – cubic feet per minute.  Air flow calculations give an AC tech the information needed to adjust dampers in order to provide more or less air flow to key areas in the building.

Some of the instruments also measure temperature and humidity as an added value to assess comfort level in offices or industrial places.  Air flow capture hoods are most commonly used by commissioning agents, contractors, or facility managers who “balance” ventilation systems.

There are several companies that make quality air capture hoods including: TSI Alnor, Kanomax, Testo – to name a few.  Popular models include TSI EBT731, Kanomax 6715, Dwyer SAH-22 or Testo 420.