Black Aluminum Foil Noise Reducing Ducting

Flexible ventilation ducting made of 1*PVC, 2*aluminum foil, 1*centrifugally glass-wool and steel wire helix to preserve the shape. Thick layer of PVC & 2 layers of Aluminum on the ducting prevents gas leaks,?Anti-corrosion and durable, Works with extractor and inline duct fans, carbon filters. Centrifugally glass-wool inside,have good sound-absorbing performance,which can decrease the noise by up to 50%. Good thermal insulation performance, works well with your portable ac device, temperature endurance range from (-30°C ~ 150°C). Suitable for any heating Ventilation & Air Conditioning (HVAC) Purposes. Such as kitchens (cooking exhaust), green houses and grow rooms (air circulation, intake and exhaust), bathrooms (smell and moisture exhaust), dryer rooms, grow tents and other.