If you are part of the team on the procurement and designing (or retrofitting) of your laboratory, it is also your job to decide whether the fume hood you're planning to install should have a Constant Air Volume (CAV) or a Variable Air Volume (VAV). Why do we think it's important? An average fume hood exhausts around 750 to 1,000 cubic feet per minute of conditioned air, hence, imagine the amount of load it's putting on the lab's HVAC system. If not well planned, this will negatively impact the operating costs of the laboratory.

Don't be overwhelmed by these terminologies as these "jargons" will be thoroughly explained with photos I personally created.