A refrigerated container including a ventilation system , the ventilation system comprising: a leak sensor disposed within an interior space of the refrigerated container and arranged to provide a signal indicative of a concentration of a refrigerant within the interior space; a controller arranged to receive the signal; an injection port ; a vent door movably disposed on a floor of the refrigerated container , the vent door being movable between a closed position and an open position; an actuator arranged to facilitate movement of the vent door between the closed position towards the open position; a vent port spaced apart from the injection port , the vent port extending through at least one of the front wall , a rear wall , and a side wall , the vent port separate from an opening receiving the vent door , wherein the vent port is normally in a closed position and acts as a ventilation device or pressure relief device to prevent the refrigerated container from exceeding an internal pressure threshold; a pressure sensor in communication with the controller , the pressure sensor arranged to provide a signal indicative of a pressure within the interior space of the refrigerated container; and a compressor fluidly connected to the injection port , wherein the compressor is arranged to apply an airflow through the injection port and into the interior space to pressurize the refrigerated container with air; wherein the controller is programmed to command the compressor to apply an airflow through the injection port and into the interior space, responsive to the signal indicative of a concentration of a refrigerant being indicative of the concentration of the refrigerant within the interior space being greater than a threshold concentration; and wherein the vent port is controlled to open responsive to the signal provided by the pressure sensor being indicative of a pressure within the interior space being greater than a threshold pressure. a leak sensor disposed within an interior space of the refrigerated container and arranged to provide a signal indicative of a concentration of a refrigerant within the interior space; a controller arranged to receive the signal; an injection port ; a vent door movably disposed on a floor of the refrigerated container , the vent door being movable between a closed position and an open position; an actuator arranged to facilitate movement of the vent door between the closed position towards the open position; a vent port spaced apart from the injection port , the vent port extending through at least one of the front wall , a rear wall , and a side wall , the vent port separate from an opening receiving the vent door , wherein the vent port is normally in a closed position and acts as a ventilation device or pressure relief device to prevent the refrigerated container from exceeding an internal pressure threshold; a pressure sensor in communication with the controller , the pressure sensor arranged to provide a signal indicative of a pressure within the interior space of the refrigerated container; and a compressor fluidly connected to the injection port , wherein the compressor is arranged to apply an airflow through the injection port and into the interior space to pressurize the refrigerated container with air; wherein the controller is programmed to command the compressor to apply an airflow through the injection port and into the interior space, responsive to the signal indicative of a concentration of a refrigerant being indicative of the concentration of the refrigerant within the interior space being greater than a threshold concentration; and wherein the vent port is controlled to open responsive to the signal provided by the pressure sensor being indicative of a pressure within the interior space being greater than a threshold pressure. <EOS>