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Suitable air velocity at the outlet of the air curtain from the cleaning booth
| Width of air curtain (mm) | 75 | 100 | 150 | 200 | 225 |
| Suitable air velocity (m/s) | 146–1.75 | 1.26–1.52 | 1.03–1.24 | 0.89–1.07 | 0.84–1.01 |
| Necessary average flow rate for unit length of air curtain (m3/h) | 434 | 500 | 612 | 707 | 749 |
