Across International Ai -40°C Cold Trap With LS Stainless Steel Traps ETLThe Ai 2nd Gen 40C F T40 cold traps are ETL certified. They have a much smaller footprint, but at the same time, offering you the same cooling power. In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases into a liquid or solid. The most common objective is to prevent vapors being evacuated from an experiment from entering a vacuum pump where they would condense and contaminate it. Particularly large cold