In a bioexclusion setup, what is the relationship between supply and exhaust air?

In a bioexclusion setup, what is the relationship between supply and exhaust air?

• A. None
• B. Equal
• C. More exhaust than supply
• D. More supply than exhaust

Answer: (D)

In a bioexclusion setup, the aim is to keep external contaminants from entering the clean area. To achieve this, the space is kept at a higher pressure than surrounding areas by supplying more air than is exhausted. The excess supply raises the room pressure, so air tends to flow outward through any gaps or openings. That outward flow helps prevent contaminants from being drawn into the space. So, having more supply air than exhaust air creates a positive pressure inside the room, which is the desired state for bioexclusion.

In a bioexclusion setup, the aim is to keep external contaminants from entering the clean area. To achieve this, the space is kept at a higher pressure than surrounding areas by supplying more air than is exhausted. The excess supply raises the room pressure, so air tends to flow outward through any gaps or openings. That outward flow helps prevent contaminants from being drawn into the space. So, having more supply air than exhaust air creates a positive pressure inside the room, which is the desired state for bioexclusion.