an exhaust system duct connected by a rag material is wound on a wire at both ends.

abandoned air an analog both chernobyl circulates connected construction duct ends exhaust fabric factory fastened forgotten gas holds homemade imitation ingenuity initiative insulation iron locksmith material materials measure metal metallic old pipes rag rags requirement retro rewound roof rust rusty safety scrap scratches shabby situation solution system tied violation wire wires work works wound