Recommended ANSI Levels for Room Criteria

Occupancy
RC Curve
Private Residences
25-30 (N)
Apartments
30-35 (N)
Hotels/Motels
          Individual rooms or suites
30-35 (N)
          Meeting/banquet rooms
30-35 (N)
          Halls, corridors, lobbies
35-40 (N)
          Service/support areas
40-45 (N)
Offices
          Executive
25-30 (N)
          Conference rooms
25-30 (N)
          Private
30-35 (N)
          Open-plan areas
35-40 (N)
          Business machines/computers
40-45 (N)
          Public circulations
40-45 (N)
Hospitals and Clinics
          Private rooms
25-30 (N)
          Wards
30-35 (N)
          Operating rooms
25-30 (N)
          Laboratories
35-40 (N)
          Corridors
30-35 (N)
          Public areas
35-40 (N)
Churches
30-35 (N)
Schools
          Lecture and classrooms
25-30 (N)
          Open-plan classrooms
35-40 (N)
Libraries
35-40 (N)
Courtrooms
35-40 (N)
Legitimate theaters
20-25 (N)
Movie theaters
30-35 (N)
Restaurants
40-45 (N)
Concert and recital halls
15-20 (N)
Recording studios
15-20 (N)
TV studios
20-25 (N)



 
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