Negative pressure systems are an isolation technique used in hospitals, medical and dental centers to prevent cross-contamination from room to room. Negative pressure is generated and maintained by a ventilation system that removes more air from the room than is allowed into the room.
All of our filtration systems can be used to build negative pressure in a room. Sealing the room is, in most cases, a rather simple process. Air is allowed into the room through a gap under the door (typically about one half-inch high). Except for this gap, the room should be as airtight as possible, allowing no air in through cracks and gaps, such as those around windows, light fixtures and electrical outlets. Leakage from these sources can compromise or eliminate room negative pressure.