Types of spaces

dB(A)

NC

Hospitals

Private rooms, Wards, Nurseries, Operating rooms

35 - 45

30 - 40

Laboratories, Areas for public use

40 - 50

35 - 45

Service areas

45 - 55

40 - 50

Schools

Libraries, Music rooms, Drawing rooms

35 - 45

30 - 40

Classrooms, Laboratories

40 - 50

35 - 45

Circulation spaces

45 - 55

40 - 50

Hotels

Rooms

35 - 45

30 - 40

Restaurants, Sitting rooms

40 - 50

35 - 45

Front door, Reception desk, Circulation spaces

45 - 55

40 - 50

Private Homes

Bedrooms

35 - 45

30 - 40

Living rooms

40 - 50

35 - 45

Auditoriums

Concert rooms, Theaters

30 - 40

25 - 30

Conference rooms, Cinemas, Multipurpose rooms

35 - 45

30 - 35

Restaurants

40 - 50

35 - 45

Offices

Meeting rooms

30 - 40

25 - 35

Management rooms, design and administration rooms

35 - 45

30 - 40

Computer rooms

45 - 65

40 - 60

Copy rooms

50 - 60

45 - 55

Churches and Places of Worship (meditative worship)

40 - 50

35 - 45

Sports Venues

Enclosed pavilions for shows and sports activities

45 - 60

40 - 55