Air Changes Calculator — Formule
## Air Changes per Hour (ACH)
ACH defines how many times the entire room volume of air is replaced per hour.
### Formula
**Airflow = Room Volume x ACH**
Required ACH depends on the room function. Adequate ventilation controls temperature, humidity, odours, and airborne contaminants.
ACH defines how many times the entire room volume of air is replaced per hour.
### Formula
**Airflow = Room Volume x ACH**
Required ACH depends on the room function. Adequate ventilation controls temperature, humidity, odours, and airborne contaminants.
Exemple Résolu
A 10m x 6m x 3m room requiring 6 air changes per hour.
- Volume = 10 x 6 x 3 = 180 m^3
- Airflow = 180 x 6 = 1080 m^3/h
- Airflow = 1080 / 3.6 = 300 L/s