About us

Professional Cooling and

Ventilation Expert.

With 22+ years of experience in the market, Kool Air International Co., Ltd, has become an industry leader in evaporative cooling technology and also a solution provider in large space ventilation and cooling.

The HVLS fans brand – “RTFANS” is professionally prestigious, especially in factories and warehouses, ventilation and cooling direction. Kool Air aims to be your perfect solution provider for on-air processing with a full range of evaporative cooling and ventilation products, including evaporative air coolers, cooling pads, and big HVLS fans for industrial, commercial, residential, and agricultural use.


As a member of an energy-saving and environmentally friendly business, we are proud to devote ourselves to large space cooling and ventilation technology and bring our customers better air with less cost and energy.


We are proud to be in this business not only because we continuously satisfy our customers with quality products and services, but also because this business brings social value to the entire world and benefits our future generation.

Increase Productivity

RTFANS gains broad knowledge and experience in large space ventilation and cooling applications. RTFANS aims to create favorable and fresh working & living environments for human comfort and increase productivity with less cost and energy consumption.

Expert & Experienced

We provide not only products but also system solutions for all kinds of large spaces, with a focus on the industrial sector in factory and warehouse cooling. RTFANS is One-Stop ventilation and cooling solutions provider for all kinds of large spaces with a full range of evaporative cooling and ventilation products, including large HVLS ceiling fans, evaporative air coolers, exhaust fans, and cooling pads for industrial, commercial, household, and agricultural use.

Expert & Experienced

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Team Members

When you're part of a great team, getting to work in the morning can be a joy and a thrill. There is a special feeling when your teammates are working towards the same goal as you.

Professional Cooling And Ventilation Expert.