| Item | Unit | WQB 40-P-VB | WQB 40-P-V | WQB 60-P-VB | WQB 80-P-VB |
| Capacity | M3/h | 40 | 40 | 60 | 80 |
| Discharge pressure | Kpa | Discharge pressure and suction pressure 80Kpa | | 60 | 60 |
| Suction pressure | Kpa | 60 | 60 | 60 | |
| Motor power | Kw | 1.5 | 1.5 | 1.5 | 2.2 |
| Motor speed | r/min | 1450 | 1450 | 1450 | 1450 |
| Noise level | db | 65 | 68 | 68 | 70 |
| Tracheal diameter | G | 3/4 | 3/4 | 3/4 | 3/4 |
| Weight | Kg | 50 | 50 | 55 | 69 |
| Size L*W*H | Mm | 646*276*273 | 646*276*273 | 553*329*272 | 553*329*288 |