Negative Pressure Fan
✔ Complete Air Exchange
Negative pressure systems ensure total building air exchange:
No dead spots: Air moves in a controlled path through the entire facility
Uniform conditions: Consistent temperature and humidity throughout
Ammonia removal: Stale air is continuously exhausted
✔ Energy Efficiency
Optimized blade design Maximum airflow per watt
Proper fan staging Only necessary fans operate
Variable speed capability Precise airflow matching demand
✔ Improved Animal Health & Performance
Reduced respiratory disease: Lower ammonia and pathogen levels
Heat stress prevention: Cooling effect in hot weather
Better feed conversion: Optimal conditions support growth
Lower mortality: Reduced heat-related deaths
✔ Durable Construction
Corrosion-resistant materials: Withstand harsh agricultural environments
Precision balancing: Extended bearing and motor life
Heavy-duty frames: Withstand continuous operation
✔ Quiet Operation
Dynamically balanced blades: Vibration-free operation
Aerodynamic design: Reduced turbulence noise
Quality motors: Low operating noise (≤60-72 dB depending on size)
Size and packaging guidelines
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| Specification | Chair | Armchair | Sofas |
| Height | 37" | 42" | 42" |
| Width | 26.5" | 32.5" | 142" |
| Depth | 19.5" | 22.5" | 24.5" |
| Assembly Required | No | No | Yes |
| Packaging Type | Box | Box | Box |
| Package Weight | 55 lbs. | 64 lbs. | 180 lbs. |
| Packaging Dimensions | 27" x 26" x 39" | 45" x 35" x 24" | 46" x 142" x 25" |
The negative pressure fan is designed based on the principles of air convection and negative pressure ventilation. The negative pressure fan is installed in areas with poor ventilation. When operating normally, it uses mechanical energy to drive the negative pressure horn fan, quickly expelling stagnant heat, odors, and smoke from the workshop to the outside in a short time, while simultaneously circulating fresh outdoor air with the indoor air, thereby achieving ventilation, cooling, and improving the workshop environment.
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