pre insulated air duck system of Haohai is an excellent way to ensure that the air in the home or office is fresh and healthy. These high-quality ducts help to regulate the temperature of air and control humidity. This can save you money on your energy bills and keep your indoor air quality high.
Ensuring that you can heat your home in the winter and cool it in the summer starts with a reliable HVAC system. Haohai pre insulated air ducts are the next generation of air ducts and are engineered to deliver more efficiency offers you a better air. By minimizing energy leakage and keeping air flowing properly, these ducts can help your system run more efficiently, resulting in better comfort and cost savings all year around.

Indoor air is vital for overall good health and well-being. Bad indoor air quality can result in breathing issues and exacerbate allergies. Haohai's pre-insulated air duct helps to ensure that the air you breathe in your home is clean and free of unpleasant smells. With these ducts, you can avoid having contaminants and pollutants enter your duct system, improve your indoor air quality, and keep your loved ones healthier.

Mounting pre insulated air ducts is a meticulous task and should be planned well. Haohai’s professional technicians understand the physics of air duct installation and have the experience and know how to ensure an accurate installation of your duct. They will follow a set of guidelines and use the right materials to make sure that your duct system operates efficiently and effectively.

There is a strong focus on sustainability in building design today. It's just the most environment friendly pre insulated air ducts from Haohai for you house and building, since it's energy-saving and not wasting energy. With the help of these ducts, you can reduce your carbon foot print and establish a more environment friendly atmosphere at home or office.
Our products are made of the most durable pre insulated air duct Their quality and durability are higher than the competition and they have gained the respect of both domestic and international customers
Our customer service is thorough and professional We have a professional customer service team that can solve any customer's issue efficiently The well-known customer service system as well as pre insulated air duct allow us to give the best service to our clients
Haohai was established in the pre insulated air duct of August 2000, has continued to maintain its fast and steady expansion. It has also become a "Advanced Enterprise and Civilized Unit for Technology Innovation" and received the ISO9001:2015 quality certification for its system. Our products are of a high quality as we have a reliable quality management system and modern equipment, and a highly skilled staff.
We offer a range of products, including Duct Panels and PU foam, Stonefix adhesive foam, Polystyrol spray adhesive foam, Multipurpose Spray Adhesive, and aerosols for personal health, auto and home care. In the present, we are creating OEM products for numerous well known companies around the pre insulated air duct.