Calculate ventilation requirements, air flow rates, and system sizing for optimal indoor air quality.
| Space Type | Minimum ACH | Recommended ACH | ASHRAE Standard |
|---|---|---|---|
| Storage/Warehouse | 1-2 | 2-4 | 62.1-2019 |
| Office Spaces | 4 | 6-8 | 62.1-2019 |
| Laboratories | 6 | 8-12 | Z9.5 |
| Industrial Shops | 6 | 10-15 | Z9.2 |
| Chemical Storage | 10 | 15-20 | Z9.5 |
| Paint Booths | 20 | 25-30 | Z9.3 |
| Contaminant Type | Condition | Capture Velocity | Example |
|---|---|---|---|
| Vapors, Gases, Smoke | Released with no velocity | 0.25-0.5 m/s | Solvent tanks |
| Fine Dust | Released with low velocity | 0.5-1.0 m/s | Powder filling |
| Coarse Dust | Released with moderate velocity | 1.0-2.5 m/s | Sawing, grinding |
| Heavy Particles | High velocity release | 2.5-10 m/s | Shot blasting |