| Parameter | Specification |
| Model | ETF-30D |
| Control System | Microprocessor Timing Control |
| Power Supply | AC 220V / DC 10V |
| Battery | 8 Rechargeable Batteries |
| Flow Rate Range | 5 – 30 L/min |
| Negative Pressure | ≥ 15,000 Pa |
| Flow Accuracy | Class 2.5 |
| Continuous Operating Time | ≥ 180 min |
| Dimensions | 213 × 133 × 150 mm |
| Weight | 3.2 kg |