Metal Square Exhaust Fan
The Metal Square Exhaust Fan is built for places where air really needs to move — hot workshops, warehouse corners that never seem to cool down, or restaurant kitchens that run full tilt all day.
Turn it on, and you can feel the difference almost immediately — a strong, steady stream of air that keeps spaces clearer, cooler, and easier to work in.
Its solid metal frame gives it that reassuring weight and durability you want from industrial gear. Inside, the one‑piece fan blades spin smoothly for maximum airflow with minimal vibration, while the pure‑copper motor with double ball bearings keeps things reliable over years of continuous use.
The fan’s design keeps maintenance simple, too. A double protective grille adds safety for busy environments and lifts off easily when it’s time to clean or inspect. And even with its strength, it doesn’t waste power — the motor is tuned for energy‑efficient performance, cutting costs without cutting airflow.
It’s the kind of fan that doesn’t need much attention — robust, dependable, and made to handle the work quietly in the background while everything else keeps moving.
Dimensions (unit: mm):

| Model | D | D1 | L |
|---|---|---|---|
| NO 1.5 | 150 | 160 | 135 |
| NO 2 | 200 | 210 | 150 |
| NO 2.5 | 250 | 240 | 160 |
| NO 3 | 300 | 290 | 170 |
| NO 3.5 | 350 | 340 | 190 |
| NO 4 | 400 | 390 | 190 |
performance:
| Model | Speed | Power | Airflow | Pressure | Noise |
|---|---|---|---|---|---|
| (RPM) | (W) | (m³/h) | (Pa) | dB(A) | |
| 1 | 2800 | 20/25 | 150 | 50 | 40 |
| 1.5 | 2800 | 40/60 | 650 | 80 | 50 |
| 1.8 | 2800 | 50/70 | 800 | 95 | 50 |
| 2 | 2800 | 80 | 1250 | 130 | 60 |
| 2.5 | 2800 | 100 | 1850 | 200 | 63 |
| 3 | 2800 | 120 | 2650 | 215 | 65 |
| 3.5 | 2800 | 550 | 4500 | 235 | 70 |
| 4 | 2800 | 750 | 5800 | 360 | 75 |
- Global shipping: Free Shipping, Delivered within 7–15 days
- International Returns: Return by mail within 30 days
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