Suggested Air Changes per Hour By Industry.

General Air

Low Pollution: 4 changes per hour

Bar

Low Pollution: 15 changes per hour

High Pollution: 20 changes per hour

bowling alley

Low Pollution: 6 changes per hour

High Pollution: 8 changes per hour

cigar lounge

Low Pollution: 15 changes per hour

High Pollution: 20 changes per hour

classroom

Low Pollution: 5 changes per hour

High Pollution: 7 changes per hour

club

Low Pollution: 12 changes per hour

High Pollution: 15 changes per hour

factory

Low Pollution: 8 changes per hour

High Pollution: 10 changes per hour

garage

Low Pollution: 6 changes per hour

High Pollution: 10 changes per hour

kitchen

Low Pollution: 15 changes per hour

High Pollution: 20 changes per hour

laboratory

Low Pollution: 6 changes per hour

High Pollution: 15 changes per hour

machine shop

Low Pollution: 8 changes per hour

High Pollution: 10 changes per hour

office

Low Pollution: 6 changes per hour

High Pollution: 10 changes per hour

Restaurant

Low Pollution: 8 changes per hour

High Pollution: 12 changes per hour