Hyee-fan Ventilation is the Number one and leading manufacturer of HVLS Fans in China, it is real optimized breeze industrial fans. For around 5 years, it has been focused only one thing: HVLSG Big fans development and innovation. After relentless research engineering, design, testing and manufacturing, now every piece of Optbreeze fans system is synchronized to deliver maximum airflow, as well as outstanding product reliability and ease of maintenance. Our fans are not only the most reliable and efficient ever built, but they're the only HVLSG fans certified by CQC, GIC, CE, and UL.

Hyee-fan Ventilation lead fans product, is far superior to its nearest competitor because of the fully integrated "Hyee"unit and continue to bring forth the new product through the old. You may not know, the heart and soul of our HVLS technology lies in airfoil blade and calibrating the ideal blade angle. As simple as a fan may seem, there's a ton of technology behind every Hyee HVLS fan. We were able to optimize airflow and only used in 2.0 HP drive so tremendous air movement, because our Relentless research and testing optimizes everything from optimum efficiency to performance to reliability.

Unique technology
1. High energy-efficient 6 airfoil blades. We use Profili V2 simulation software to develop the Airfoils blade to dramatically increase efficiency and maximum air flow.
2. Six Blade fans create the same air movement as 8 or 10 blades, but with 40% less power. And fewer blades to turn means less torque and longer fan life.
3. Unique patented technology of adjustable pitch, it can push more air flow with larger range in more energy-efficient.
4. Built in RF line filter, The inhibition of the motor and the cables from the radio interference
5. Built-in intelligent logic controller, to achieve lean and reliable operation
6. Built-in brake chopper, the device's kinetic energy to the braking power, so that the motor deceleration function
7. With ground fault, moderate short-circuit protection function
8. General RS485FC protocol, to achieve any control system communication
9. Shell Omala S4GX highest-quality life time synthetic oils
10. Simrit double lipped output seals auto vents keep the contaminates out for long term maintenance
11. Danfoss Powerful FC51 variable frequency
12. Designed for over 10 times the force and stress the Fan generate, and 40 years in the most demanding applications worldwide.