Polypropylene duct hoses for air are primarily used on heaters, defrosters, air conditioners, and ventilation equipment in the marine and transportation industries. They meet Federal Motor Vehicle Safety Standard Number 302 (FMVSS 302), which specifies the burn-resistance requirements for materials used inside motor vehicles. These hoses are lightweight, flexible, and crush-resistant. They also resist damage from exposure to chemicals and moisture, are self-extinguishing, and provide good flex-fatigue resistance. The hoses are highly compressible, which saves space when transporting them.

These reinforced neoprene duct hoses have insulation for the temporary transfer of heated or cooled air for climate conditioning. They have a wire helix that provides strength and durability, preventing collapsing or kinking under pressure or vacuum. Neoprene is flexible and resists heat and flames.

These silicone-coated fiberglass duct hoses have PTFE liners that resist weather and chemicals. These duct hoses are used in applications that need to remove chemical fumes. The hoses resist UV exposure and weather damage and will not kink. They have a smooth interior that maximizes airflow through the hose and minimizes friction. These hoses are highly compressible, which saves space when transporting them. They are not recommended for use with liquids or abrasive materials.