Fresh Air ACH Calculator 💨

Calculate ventilation airflow based on room volume and air changes per hour.

📊 Room Dimensions

📋 ACH Guide:

Office	4-6 ACH
Conference Room	6-8 ACH
Classroom	6-8 ACH
Hospital Room	6-8 ACH
Operating Room	15-20 ACH
Restaurant	8-12 ACH

📊 Results

💨

Enter room dimensions and click Calculate

📚 References

ASHRAE 62.1 - Ventilation for Acceptable IAQ
ASHRAE Handbook - HVAC Applications