INDOOR AIR QUALITY
TOPIC: SPECIAL PROCEDURE ROOMS
ISSUE:
Ventilation requirements for special procedure rooms.
BACKGROUND:
This design alert is in response to inquiries from several VAMCs and consultants
concerning ventilation requirements for special procedure rooms.
RECOMMENDATIONS:
1. Minimum requirements for new construction:
ROOM DESCRIPTION
ROOM
AIR CHANGES
PRESSURE
PER HOUR
Bronchoscopy
Negative
12
Cardiac Catheterization
Positive
15
Colonoscopy / EGD
Negative
6
Cystoscopy
Positive
8
Endoscopy
Negative
6
Fluoroscopy
Negative
6
GI (Gastrointestinal)
Negative
10
Proctoscopy
Negative
6
Sigmoidoscopy
Negative
6
2. Provide 100% exhaust from procedure rooms with no re-circulation.
3. No dedicated exhaust system required. The exhaust from these rooms can be
tied to general exhaust.
4. No dedicated air-handling unit required for these spaces.
29 January 1998
FM-187C-DA83
1
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