Galvanized metal air ducts always need insulation after production or installation. Also, installing such ducts in corners or false ceilings is associated with difficulties. Therefore, Havakaran Tehran Noavar Company with maintain the standards and quality has produced flexible duct with polyester insulation, which has default insulation and is also easy to install due to its flexibility and production in different sizes.

In the flexible duct with polyester insulation, the insulation is relatively bulky, and in addition to not wasting energy, they are also considered good sound insulation, and another name for these products is sound insulation flexible duct. The use of this type of ducts increases the efficiency of HVAC systems, air conditioning systems and exhaust fans, etc., and prevents heat loss in winter and cold loss in summer, which leads to lower energy costs and increased comfort throughout the year.