Professional Ventilation Calculator

Ventilation Calculator

ASHRAE 62.1 Compliant Airflow Calculations

About This Tool

This professional calculator helps determine:

  • Minimum outdoor airflow requirements
  • Ventilation rates per space type
  • Total CFM requirements
  • Compliance with ASHRAE Standard 62.1
  • Proper HVAC system sizing
Required Outdoor Airflow
0 CFM
Space Type People Rate Area Rate