HDT Global’s Expeditionary Energy Efficiency (E2) line includes the Radiant Barrier Blanket, an expeditionary shelter accessory that creates an additional thermal barrier, increasing a shelter’s insulation capability. In hot climates, it helps the shelter cool faster and warm slower, reducing environmental control unit (ECU) run time by 75 percent. In cold climates it helps the shelter heat faster and cool slower, reducing heater run time by 57 percent. E2 products meet or exceed military standardsÂ and requirements. HDT Global is headquartered in Solon, Ohio.