| Building Type |
ACH Ranges |
Average ACH |
| Beater Room |
30 |
30 |
| Boiler Room |
30 – 60 |
45 |
| Bottle Pasteurizing |
20 – 30 |
25 |
| Box Annealing |
20 |
20 |
| Breweries Fermenting Room |
20 – 30 |
25 |
| Compressor |
15 – 20 |
17.5 |
| Dye Houses |
10 – 15 |
12.5 |
| Electric Furnace |
60 – 120 |
90 |
| Engine Room |
30 |
30 |
| Forge Shop |
35 |
35 |
| Foundry – Core Rooms |
40 – 60 |
50 |
| Foundry – Cupola Building |
30 – 40 |
35 |
| Foundry – Moulding Section |
20 – 30 |
25 |
| Foundry – Pouring Section |
20 – 30 |
25 |
| Galvanizing Room |
15 – 20 |
17.5 |
| Gas Producer Building |
10 -20 |
15 |
| Generating Room |
20 |
20 |
| Glass Furnaces |
60 – 120 |
90 |
| Glass Plant |
30 – 60 |
45 |
| Heat Treating Room |
60 – 120 |
90 |
| Keg Washing & Storage |
8 – 12 |
10 |
| Machine Shop |
10 – 15 |
12.5 |
| Oil Refineries – Pump House |
15 – 20 |
17.5 |
| Packing, Meat – Slaughter House |
5 -10 |
7.5 |
| Packing, Meat – Smoke House |
30 |
30 |
| Paint Spray Area |
60 – 90 |
75 |
| Paper Mill |
20 |
20 |
| Pickling – Continuous |
10 – 15 |
12.5 |
| Pickling, Open Type |
40 |
40 |
| Steel Furnace Building |
45 |
45 |
| Sugar Mill – Main Building |
15 – 20 |
17.5 |
| Sugar Mill, Battery and Press |
15 |
15 |
| Textile Mill |
10 – 15 |
12.5 |
| Transformer Room |
30 |
30 |
| Turbine Room, Electricity |
15 |
15 |
| Warehouse |
4 – 5 |
4.5 |
| Zinc Smelting Building |
60 |
60 |
