Neoprene-coated polyester fabric duct hoses resist damage from chemicals and punctures, and they are flame-retardant and self-extinguishing. They are suitable for positive- or negative-pressure movement of light particles or materials. These hoses are used for dehumidification, enclosed-space ventilation, welding fume-removal, general fume-removal, solvent ventilation, and general ventilation applications. They are used in the aerospace, facility-service, foundry, ground-support, industrial woodworking, metal-processing, municipality, plastics-processing, and shipyard industries.