Specification:-
| Model | Spec (mm) | Blade Diameter (mm) | Voltage | Rotation speed (rpm) | Air Flow (m3) | Input Power (w) | Noise (db) |
| DHF-1 | 1380 X 1380 X 400 | 1270 | 240 / 415v | 1400 | 44500 | 1100 | 68 |
| DHF-2 | 1220 X 1220 X 400 | 1110 | 240 / 415v | 1400 | 37000 | 750 | 65 |
| DHF-3 | 1060 X 1060 X 400 | 950 | 240 / 415v | 1400 | 32000 | 550 | 60 |
| DHF-4 | 900 X 900 X 400 | 790 | 240 / 415v | 1400 | 28000 | 370 | 55 |
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