Pumps used in VACUU•LAN® networks typically operate at 45-50 dBA. Common reference materials describe face to face conversation as 60 dBA. This means that you will never have to shout over a VACUU•LAN® network pump. In fact, it is much quieter than the typical fume hood, so it is entirely likely that you will not realize that the pump is operating, even without a sound insulating cabinet. Watch our pump noise video below to get a sense of how quiet a vacuum pump can be.