
Balanced Ventilation Class A2/B1 Flame-Retardant Permeationpurified Air Duct. Custom Shape Design: Supports existing designs or fully customized shapes to meet specific project requirements. Flame Retardant Class A2/B1: Meets high safety standards with Class A2/B1 flame retardant certification for ventilation systems. Uniform Air Supply: Provides diversified appearance and uniform air distribution with laser-cut holes to prevent flocculation. High Strength Fabric: Constructed from 120-330g/m2 high-strength polyester fiber fabric with 2500pa pressure resistance. Low Noise Performance: Designed for quiet operation, suitable for air conditioning and industrial ventilation applications. Wide Diameter Range: Available in duct diameters ranging from 200mm to 3000mm for versatile installation needs. OEM/ODM Service: Manufacturer offers both OEM and ODM services with dedicated R&D engineers for product development. Fast Lead Time: Efficient production with an average lead time of within 15 workdays for both peak and off-season orders.