CFM Calculator
Calculate airflow requirements using multiple methods.
CFM per Ton Guidelines
| Climate/Application | CFM/Ton |
|---|---|
| Humid climate (high latent) | 350 |
| Standard residential | 400 |
| Dry climate (low latent) | 450 |
| Sensible-only cooling | 500+ |
Air Changes per Hour (ACH)
| Space Type | Recommended ACH |
|---|---|
| Residential | 4-6 |
| Office | 6-8 |
| Retail | 8-10 |
| Restaurant | 10-12 |
| Commercial Kitchen | 15-20 |
| Laboratory | 15-25 |
| Operating Room | 20-25 |