💨 Negative Pressure Fans: The Smart Choice for Greenhouse Ventilation & Cooling

When building or operating a greenhouse, one of the biggest questions growers ask is: How do I achieve efficient ventilation and cooling?
The answer for many projects is the Negative Pressure Fan—one of the most effective and widely used solutions.

1. What Is a Negative Pressure Fan?

A negative pressure fan is a high-airflow, low-noise ventilation device. It works by extracting hot air from the greenhouse, creating negative pressure inside. Fresh air is then drawn in through inlets (such as cooling pads), enabling rapid air exchange and cooling.

2. Key Functions Customers Care About 🌱

• Strong Ventilation: Removes heat, humidity, dust, and harmful gases.

• Rapid Cooling: Paired with cooling pads, it can lower the temperature by 8–12°C in minutes.

• Better Climate: Maintains stable temperature and humidity for healthier crop growth.

• Energy Saving: Far lower energy consumption compared to air-conditioning systems

3. Why Choose Negative Pressure Fans?

• Cost-Effective: Lower initial investment than alternative cooling systems, easy maintenance.

• Durable: Made with galvanized steel or stainless steel, lifespan of 5–7 years.

• Versatile: Suitable not only for greenhouses but also for livestock farms and industrial workshops.

4. Return on Investment (ROI) 💰

• Initial investment is typically only 20–30% of air-conditioning systems.

• Significant energy savings with lower power consumption.

• Provides the right growing conditions, improving yield and quality—leading to higher profits.

5. Common Customer Questions ❓

• How much area can one fan cover?
  → A 1380 model can cover around 70–120 m², depending on greenhouse design.

• Can it work alone?
  → Yes, but best results come when combined with cooling pads.

• Is power consumption high?
  → Each fan uses about 0.75–1.1 kW, far less than traditional cooling equipment.

• Is maintenance difficult?
  → No, the structure is simple—just check belts, shutters, and motors regularly.

💡 Conclusion
For growers seeking efficient and economical cooling and ventilation, negative pressure fans are the ideal solution. They help create the right climate for crops while reducing energy costs.

👉 Planning a greenhouse cooling system? Contact us for professional designs and solutions—including free 3D drawings tailored to your project.