Reflectix, Inc. offers its Reflectix® Natural Fiber Duct Liner, a thermally bonded HVAC insulation that offers excellent acoustic and thermal performance. Made from natural fibers, the liner contains no fiberglass and does not itch or cause skin irritation. The air stream surface of the duct liner is overlaid with a durable, fire-resistant black facing, providing additional strength. Both the insulation and the facing are treated with an EPA-registered anti-microbial agent. Made from 85% natural fibers, the liner is primarily used as an acoustical liner in HVAC sheet metal ducts to absorb unwanted noise from multiple sources. The liner also reduces heat gain or loss.Reflectix, Inc.