About Airwise
HVAC infrastructure,since 1996
From a workshop in Beijing to a global manufacturer with facilities in China, the USA, and Australia. We design our own equipment, manufacture our own products, and ship to 60+ countries.
From workshop to global manufacturer
Dongyang Hstube Co., Ltd (东阳市胡氏利达管业有限公司) was founded in 1996 in Beijing with a focus on ventilation duct manufacturing. What set the company apart from the start was an obsession with building its own equipment — every production line uses machinery that was designed and built in-house, giving us strong R&D capabilities and the flexibility to offer custom duct solutions.
In 2008, the company relocated to a purpose-built 5,000 m² factory in Dongyang, Zhejiang — at the heart of China's HVAC manufacturing region. With six production lines and 60–80 workers, we manufacture a complete range of ventilation products: aluminum ducts, aluminum foil flexible ducts, PVC aluminum composite ducts, insulated ducts, stainless steel ducts, spiral ducts, PVC reinforced ducts, PU ventilation ducts, nylon fabric ducts, universal telescopic ducts, and all associated fittings and accessories.
Today, Airwise operates on three continents: manufacturing in China, spiral duct fabrication in Houston TX (4,300 m²), and distribution in Sydney, Australia. The Airwise Flex brand carries AWTA certification for the Australian market, and the factory holds UL listing — one of only three Chinese HVAC manufacturers to achieve this. Our motto: integrity, innovation, efficiency, and mutual success.
Where your HVAC parts are made
5,000 m² purpose-built facility in Dongyang, Zhejiang — six production lines, CNC laser cutting, automated extrusion, and in-house quality testing.
Powder coating line — in-house finishing
Key milestones
Founded in Beijing — Mr. Hu starts HVAC duct manufacturing with a dedicated production workshop.
Relocated to Dongyang, Zhejiang. Purpose-built 5,000 m² factory at Chengdong Ecological Industrial Park, self-developed production equipment.
Sydney office + warehouse. Airwise Flex brand with AWTA certification for Australian market.
UL certification — one of only 3 Chinese HVAC manufacturers to achieve this.
60+ export countries. OEM partnerships with global HVAC brands.
4,300 m² Houston, TX facility. Made in USA spiral ducts and fittings.
Airwise Parts: one-stop platform, 187 products across 9 categories.
Quality credentials
| Certification | Scope | Notes |
|---|---|---|
| UL Listed | Safety certification | 1 of only 3 Chinese HVAC manufacturers |
| CE | European conformity | Meets EU health, safety and environmental standards |
| M1 (France) | Fire resistance | French building material fire classification |
| ROSH | Hazardous substance | Restriction of hazardous substances compliant |
| AWTA | Building compliance | Australian building code certification for Airwise Flex |
About — frequently asked
Is Airwise a manufacturer or trading company?▾
Manufacturer. 5,000 m² factory with 6 self-developed production lines, plus 4,300 m² Houston TX facility.
Can I visit the factory?▾
Yes. Dongyang is ~1.5 hours from Hangzhou airport. Houston facility open by appointment. Contact us to arrange.
Do you offer OEM / private label?▾
Yes. Custom specifications, branded packaging, labeling, and documentation. Typical lead time for custom orders is 25–35 days.
Ready to partner?
One-time orders or long-term OEM. We respond within 12 hours.