The two-unit (2U) whole blood transport container designed to accept multiple Commercial Off-the-Shelf evaporative cooling engines. The system is intended to sustain up to 42 hours of low-titer O whole blood (LTOWB) cooling within transport temperature parameters (10°C), depending on configuration and operating conditions.

Commercially available evaporative cooling systems can provide a non-electric (“analog”) cooling method that reduces reliance on batteries and powered refrigeration in constrained environments. Chemical heat sources can drive phase-change and evaporation processes that transfer cooling to a cold plate without active electrical power, enabling extended cooling duration with appropriate consumable resupply.