The future of dental vacuum is the dry-vacuum systems as they are more efficient and cost less to run overtime. One of the biggest hurdles to upgrading to a dry-vacuum system is installing a pump exhaust. Generally speaking, the building code requires ALL Dental Vacuum Systems to exhaust to an outside ventilated space. Unfortunately, somehow in many areas, old wet-vacuum systems were allowed to ventilate into a mechanical room. Though technically not to building code, these systems continue to vent into a mechanical room space, reintroducing the dirty air from the clinic’s vacuum lines back into the clinic.