Mechanical / Ventilation ยท Live tool
Outdoor Air & Exhaust Calculator
Calculate outdoor air requirements and exhaust rates for compliance with ASHRAE 62.1, local codes and green-building standards across all occupancy types.
What you can do
- Occupancy-based and area-based OA calculations
- ASHRAE 62.1, EN 15251 and local code compliance
- Exhaust rate scheduling by space type
- Summary table and authority-ready report