VAV fume hood system was designed to control the exhaust air of fume hood for keeping
the average surface wind velocity in constant during the process of adjustable door moves,
meanwhile to ensure the amassing dust capacity of fume hood and significant saving energy.
To make it slightly lower than the exhaust air volume to ensure the room pressure by
adjusting the air supply volume.
The advantage of variable air volume control system:
1. Significant saving energy
2. High safety and keeping the surface wind velocity constant while the door position changes
3. The function of connatural alarm and monitoring is the typical component of VAV system.
4. Rapid equilibrium process and increasing flexibility
5. Diminishing wind flow volume and lowering volume level