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.