The hose contains compressed air. Flexible tube for the transport of liquids or gases. The air hose is used to supply air to the product air tool or air compressor. PVC is a material widely used for general gas pipeline and air applications. Plastic pipes are inexpensive, durable and lightweight. Hoses are used to transfer fluids in air or fluid environments, and are typically used with clamps, valves, flanges, and nozzles to control fluid flow.