3.22.2 REFERENCE DOCUMENTS
(a) Center for Disease Control (CDC): "Guidelines for Preventing the
Transmission of Mycobacterium Tuberculosis in Health-Care Facilities,
1994", MMWR Morbidity and Mortality Weekly Report, published by U.S.
Department of Health and Human Services-Public Health Service.
(b) Program and Facility Planning for Tuberculosis Programs, August 18,
1995.
(c) CDC/NIH Publication "Biosafety in Microbiological and Biomedical
Laboratories", 3rd Edition, May 1993.
3.22.3 POLICY AND PROCEDURES
(a) Where the VA Design Criteria exceed the minimum requirements outlined
in the CDC document, compliance with the VA Criteria is mandatory for all
new facilities and major renovation projects. For existing facilities
where compliance with the VA Criteria may not be feasible (or cost
effective) due to the limitations of the configuration of the HVAC system,
the minimum requirements outlined in the CDC document shall suffice.
3.22.4 BASIC DESIGN PARAMETERS
3.22.4.1 Indoor design conditions in TB rooms and associated areas are
listed in Table 3-5.
Table 3-5 TB Criteria Indoor Design Conditions
ROOM OR AREA
SUMMER
WINTER
Db Degrees C
RH
Db Degrees C
RH
(Degrees F)
(Percent)
(Degrees F)
(Percent)
Ante Rooms
25 (78)
50
22 (72)
30
Isolation Rooms for s/KI
24 (76)
50
25 (78)
30
TB patients
Bathrooms & Toilets
25 (78)
---
22 (72)
---
Treatment Areas
24 (76)
50
25(78)
30
Intensive Care Unit AFB
22 (72)
50
25 (78)
30
(Acid Fast Bacilli)
TB Dental Operatory
24 (76)
50
25 (78)
30
TB Dialysis Room
24 (76)
50
25 (78)
30
24 (76)
50
25 (78)
30
Ambulatory Care Areas
including Emergency Care
and Waiting areas
Clinical Mycobacterial
24 (76)
50
22 (72)
30
BSL3 Laboratories
Notes:
(1) These are design conditions and not operating limits. All thermostats
shall be adjustable between 16 to 29 degrees C (60 to 85 degrees F) range.
HVAC DESIGN MANUAL
3-25
HVAC REQUIREMENTS FOR OCCUPIED AREAS
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