does the subject want to ask "what is the specification of Zhejiang FRP purification tower"? Treatment air volume, tower diameter, tower height, packing layer, fan.

1. Treatment air volume: determined according to the amount of waste gas to be treated. Common treatment air volumes are 1111, 2111, 3111, 5111, 11111, 21111 cubic meters per hour, etc.

2. Tower diameter: determined according to the treated air volume and tower height. Common tower diameters are 1.1, 1.2, 1.5, 2.1, 2.5, 3.1m, etc.

3. Tower height: determined according to the treated air volume and tower diameter. Common tower heights are 3.1, 4.1, 5.1, 6.1, 7.1 and 8.1m.

4. packing layer: it is determined according to the composition and concentration of waste gas to be treated. There are two, three and four common packing layers.

5. Fans: determined according to the treated air volume and pressure. Common fans include centrifugal fans and axial fans.