AV+ (Automatic Ventilation) provides automatic ventilation based on the respiration of the produce to ensure safe cargo transportation. AV+ is the correct way to accurately control fresh-air ventilation in reefers. By using a CO2 sensor, the technology that powers AV+ monitors the natural respiration of produce inside the reefer. Based on preselected settings, the AV+ module automatically opens and closes to reach and maintain safe CO2 or O2 levels. This minimises the risks of over-ventilation with warm ambient air and ensures that produce enjoys optimum care during transportation, which can delay ripening.