Cambios de aire por hora
| 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 |