Donaldson Torit Porta-Trunk Fume Collector The PT-1000 is a portable weld fume collector with an 8-foot Flex-Trunk Weld Fume Extraction Arm. The Porta-Trunk fume collector is a manual filter cleaning system. It offers a high filtration efficiency in a compact size, with plug and go operations. Handles intermittent-duty to light production applications. Easily fits through any standard doorway. Just place into position, plug into the wall, flip a switch, and start welding.