The evaporator is a cooling unit which releases cool air in the car cabin. Warm air from the interior of the vehicle passes through the evaporator by action of the blower fan. Since it's a fact of nature that heat always travels from a warmer area to a cooler area, the cooler refrigerant flowing inside the evaporator's absorbs heat from the warm air. At the same time, humidity in the air condenses on the cool evaporator's surface, then eventually drips out of a drain tube to outside the vehicle.
Our evaporators are manufactured as per OEM design for a proper fit and finish, they also undergo rigorous tests to ensure zero leakage.