In winter, the fans can be set to rotate more slowly, around 20 rpm, to gently push down accumulated hot air to the floor level while trying to minimize ventilation. "You don't want a draft, but you want to keep forcing the air back down, with a constant pressure." The company...

Hot, stifling working conditions have bad effect on productivity. During summer months, it's not uncommon for temperatures to top 95°F in some big plants. Unfortunately, keeping large open spaces, such as factories and warehouses, at a comfortable temperature is a big challenge. High...

May the bright and festive glow of New Year candle warm the days all the year through. Hoping you will have a wonderful time enjoying New Year that is happy in every way.

Powerful OPT HVLS Fan resemble the natural breeze, it will generate the massive and smooth airflow.

Effect of OPT HVLS fans 1. Wide coverage: With super large diameter (7.3 meters), and low rotating speed, the operation o f OPT HVLS fans promote the orderly flow of air in a large space, and the effective approximate coverage area of each fan exceeds 1800 square meters; 2. Omni-directional and...

Ventilation is the priority of gym owner to consider because we all need fresh air during exercising.

It’s the Thanksgiving day , we’d like to take this opportunity to express our gratitude to you. Thanks for customers and partners choosing and trust us for 15 years. We'll do better with your beliving.

Where can OPTFAN be used? For example in... Greenhouse:A comfortable zone is pivotal for optimal growing of plant. The slow and massive air movement by OPT Big Fans creates an exhilarating breeze - as felt natural breeze, in any big spaces. So your workforce, plant，clientele, or animals in the...

The production of cows is affected when there is a repetition of abrupt temperature swingsProperly designed ventilation will moderate or eliminate the abrupt temperature swings offering the cow the sensation of cooling under hot conditions and warming under cold conditions.

To support education and care more about students studying environment ,OPT together with business partners sponsor medical care and education in local areas.

OPT Low Cost Energy Saving Big HVLS Factory Fan Factory safety device: steel wire traction cable prevents the fan from shaking under the influence of external force. The whole machine has passed the European CE safety certification and testing. The enterprise has passed the CQC, ISO9001, SCS certification.

Keep your work space cool, dry and clean

The KQ Series HVLS fan has an innovative designed blade simulated American aviation airfoli that moves more air with less energy.

Now,with OPT HVLS Big Ceiling fans,no matter how large your workshop is and how many people crowded,one unit can cover 1600 square meter,air volume can be 13200CMM.

Safe & Comfortable, Giant & Cool, Modern & High Tech

OPT HVLS fans blades made of unique material with aviation technology.More efficient shape design to make sure the fan perform the best.