Area Designation

Pressure Relationship to Adjacent Areas

Minimum Total Air Changes per Hour Supplied to Room

All Air Exhausted Directly to Outdoors

Recirculated Within Room Units

Procedure Room

+

15

Optional

No

Examination Room

0

6

Optional

Optional

Recovery Room

+

6

Optional

Optional

Medication Area

+

4

Optional

Optional

X-Ray Room

0

6

Optional

Optional

Soiled Workroom or Soiled Holding

-

10

Yes

No

Clean Workroom or Clean Holding

+

4

Optional

Optional

Darkroom

-

10

Yes

No

Toilet Room

-

10

Yes

No

Janitors' Closet

-

10

Yes

No

Sterilizer Equip. Rm.

-

10

Yes

No

Linen and Trash Rm.

-

10

Yes

No

Laboratory

-

6

Optional

Optional

Soiled Linen Storage

-

10

Yes

No

Clean Linen Storage

+

2

Optional

Optional

Anesthesia Storage

0

8

Yes

No

Central Services Area

Soiled Area

-

6

Yes

No

Clean Area

+

4

Optional

Optional

Equipment Storage

0

2

Optional

Optional

+    =    Positive

-     =    Negative

0    =    Equal