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　　Model and parameters of negative pressure fan

　　Negative pressure fan is a device used for ventilation and cooling, widely used in factories, warehouses, farms and other places. There are significant differences in parameters and performance among different models of negative pressure fans. Here are some common models and parameters of negative pressure fans:

　　Example of Model

　　1. Model A: Suitable for small and medium-sized factories, with moderate air volume and low noise.

　　2. Model B: Suitable for large factories and warehouses, with high air volume and wide coverage.

　　3. Model C: Suitable for agriculture and animal husbandry, with balanced air volume and noise control.

　　Main parameters

　　1. Airflow: An important indicator for measuring the ventilation capacity of a negative pressure fan, usually measured in cubic meters per hour (m ³/h).

　　2. Power: The key parameter that determines the energy consumption of a wind turbine, usually measured in watts (W) or kilowatts (kW).

　　3. Speed: The number of times the fan impeller rotates per minute, usually measured in revolutions per minute (rpm).

　　4. Noise: The sound intensity generated by a fan during operation, usually measured in decibels (dB).

　　5. Size: The external dimensions of the fan, including diameter and thickness, are usually measured in millimeters (mm).

　　Purchase suggestions

　　1. Select according to requirements: Choose suitable models and parameters based on actual usage needs to ensure a balance between ventilation effectiveness and energy consumption.

　　2. Consider installation environment: Confirm the installation location and space size, and choose a suitable size of negative pressure fan.

　　3. Focus on brand and service: Choose well-known brands and manufacturers with good after-sales service to ensure equipment quality and post maintenance.

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