A3 Duct: The Premier Choice in PIR Pre-Insulated Ductwork for Modern HVAC Systems
2025年11月17日
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A3 Duct, with over 30 ye
Pre-insulated duct for Ventilation
Our Products
15HB21 Basic Clean Series
Eco-friendly insulation with a density of 48+Kg/m3, water-based foaming, 20.5mm thick (±0.5mm tolerance), and specially coated aluminum foil.
Ideal applicable to all central air-conditioning duct systems.
15HL21 Ultra-Clean (Antibacterial) Series
Eco-friendly insulation 52±2Kg/m3, 20.5mm thick ±0.5mm with embossed aluminum on one side and smooth, antibacterial-coated aluminum on the other.
Prfect for cleanrooms, operating rooms, and high-purity environments (Class 100/Class 10).
15HE21 Advanced Anti-Corrosion Series
Eco-friendly insulation (52±2Kg/m3, .mm thick ±20.5mm) with embossed aluminum on one side and anti -corrosion embossed aluminum on the other.
Ideal for harsh indoor/outdoor environments, coastal areas, and high-altitude locations.
Air Duct
One Stop Solution
As a professional duct system service provider, Huaao offers a complete “design → production → installation → maintenance” solution. By integrating AIoT-enabled intelligent management and digital control technologies, we help our clients achieve smart, efficient, and sustainable operation of their ventilation systems. From initial planning to long-term maintenance, Huaao ensures every stage runs smoothly—delivering cleaner air, higher efficiency, and reliable performance for every project.
Huaao Milestone
1997 – Introduced P3 composite duct materials to China, pioneering a new era of energy-efficient duct systems in the domestic market.
2005 – Participated in drafting China’s national standards (GB) for composite ducts, setting benchmarks for safety and quality across the industry.
2010–2017 – Expanded national service coverage and established long-term partnerships with leading cleanroom, pharmaceutical, and HVAC projects.
2018 – Published the industry’s first Technical White Paper, promoting standardization and advancing technological development in duct manufacturing.
2020 – Recognized as a trusted one-stop solution provider for design, production, installation, and maintenance of duct systems across 2,000+ projects.
2024 – Successfully localized P3’s world-leading water-based foaming technology in China—achieving non-toxic, eco-friendly production that meets global environmental standards.
2025 – Launched the next-generation Huaao S Duct System, combining AIoT smart management with sustainable performance to redefine intelligent ventilation.
Focusing on Ventilation
With the world’s leading non-toxic and environmentally friendly water foaming technology, we have grown into China’s most valuable provider and service provider of air duct system solutions, and a leader in clean air duct systems. We will serve our customers wholeheartedly with endless enthusiasm.
Intelligent Ventilation System
P3 duct system, a more advanced aluminum foil composite duct system. Replace traditional metal plates with innovative energy-saving, environmentally friendly, safe and hygienic panels to deliver higher quality air to buildings.
—The P3 system ensures advantages in technology, installation, and economy
—Under the platform architecture of “Internet plus”, continue to innovate and develop
—Dedicated to providing support for designers, engineers, sales companies, and installation companies
—Establish a management system based on the P3 optimal solution.
Founded
1997
Factory Area
1000
㎡
Auto Production lines
0
Product Cataglories
0
R&D Employee
0
+
Our Advantage
Reliable and Trustworthy
30 years of manufacturing experienceserving global customers with reliable quality
Competitive Price
Source factory purchases ataffordable prices quality assurance
OEM&ODM Custom
Convenient installation fast delivery flexible customization of products
Environmentally Friendly
Adopting environmentally friendlysafe and reliable raw materials
News & Events
Maximize Space Efficiency with Huaao Polyurethane Aluminum Foil Composite Duct Systems
2025年11月13日
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For over three decades, w
30 Years Dedicated to Air Ducts: Huaao A3 Ducts Reshape the Industry with Innovative Technology
2025年11月4日
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Since 1997, Hua’ao
Hong Kong Airport Ventilation Duct System Upgrade and Renovation
2024年5月22日
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Hong Kong Airport has enh
Revolutionizing Cleanroom Air Ducts: High-Performance, Cost-Effective Solutions
2024年5月13日
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Cleanroom environments de
Upgrade Your Home Comfort with Advanced Ductwork in Villas
2024年4月2日
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A new-generation ductwork
Comparison Between Huaao Ducts and Other Products
Fire resistance
Huaao Duct
Ordinary Air Duct
The Huaao air duct uses the best insulation material available today, with a performance parameter of λ i=0.022W/m · k
During installation, there is no need to fill any insulation materials (such as fiberglass, rubber, etc.) like metal sheets
Easy Cleaning
Huaao Duct
Ordinary Air Duct
The only independent clean air duct brand in the world, each board has independent cleaning function.
The board itself uses air flow to complete autonomous cleaning, simplifying the manual cleaning and maintenance process
Meets the requirements of TB/T3139 and does not contain harmful volatile substances such as lead, cadmium, asbestos, etc
Easy Installation
Huaao Duct
Ordinary Air Duct
A 12mm thick P3 duct weighs only 1.16kg per square meter, while a 20mm thick P3 duct weighs only 1.5kg per square meter, which is much lighter than traditional metal sheets，Significantly reduced transportation costs，On site construction, convenient installation, saving installation costs.
Air Tightness
Huaao Duct
Ordinary Air Duct
Specialized flange system to eliminate longitudinal leakage and reduce transmission connection point leakage
The special adhesive reacts with the insulation layer to integrate it into one
The airtight effect is 8 times that of traditional air ducts
Sound Insulation
Huaao Duct
Ordinary Air Duct
The joint material of P3 duct blocks vibration and Resonance sound, with high environmental comfort，Compared to conventional metal plates, the noise of P3 air ducts The sound attenuation effect is extremely significant
GB/T19889.3-2005 Airborne sound insulation volume，Detected at 21dB, with excellent auditory comfort
Corrosion Resistance
Huaao Duct
Ordinary Air Duct
Corrosion of hydrochloric acid, nitric acid, sulfuric acid, chloride, sulfide, etc，Sexual substances have extremely strong resistance
Food grade pure aluminum foil with antioxidant, anti-corrosion, and antibacterial properties, moisture-proof and rodent resistant,Has strong UV protection ability，Ensure ventilation system maintenance in various extreme erosion environments，Best Performance Operation
Energy-saving
Huaao Duct
Ordinary Air Duct
Compared to traditional air ducts, every 1000 square meters of Huaao ducts can save at least 2280 dollar in electricity bills annually
Non toxic and environmentally friendly water foaming technology, does not use any greenhouse gases or hydrocarbons
For every 1 square meter of Huaao duct panel used, we save 200 square meters of forest
Long Service Life
Huaao Duct
Ordinary Air Duct
The theoretical service life of the Huaao duct laboratory exceeds 50 years, and the current engineering examples have exceeded 30 years；Traditional air ducts generally require insulation replacement every 5-7 years, and overall air ducts need to be replaced every 10-15 years.