Optimizing Ventilation in School Corridors Ensure Student's Health, Dilute Indoor Contaminants in School Corridors. ASHRAE 62.1 now requires corridor ventilation due to high occupancy, transfer of contaminants, and off -gassing of volatile organic compounds (VOCs) from lockers. EBTRON provides solutions to accurately measure, monitor, validate, and control ventilation and ensure clean air delivery rates. Integrated with Bluetooth® technology, real-time airfl ow and psychrometric measurement data are easily accessed through the EB-Link App. Data is communicated to the BAS via BACnet or Modbus for continuous commissioning and trending.