| Modello | kW | RPM | kg | m³/h | mmH₂O | dB(A) |
|---|---|---|---|---|---|---|
| NEXT 2025 | 0.25 | 2780 | 16 | 250–1750 | 91–31 | 64 |
| NEXT 2037 | 0.37 | 2950 | 21 | 250–1750 | 100–40 | 65 |
| NEXT 2075 | 0.75 | 2600 | 28 | 500–2500 | 124–73 | 70 |
| NEXT 211 | 1.1 | 2810 | 26 | 500–3500 | 142–62 | 72 |
| NEXT 12 | 1.5 | 2870 | 46 | 500–3500 | 148–74 | 73 |
| NEXT 222 | 2.2 | 2860 | 46 | 1000–5000 | 196–100 | 74 |
| NEXT 42 | 4 | 2900 | 82 | 1000–8000 | 249–88 | 80 |
| NEXT 32 | 3 | 2860 | 55 | 1000–7000 | 200–76 | 77 |
| NEXT 15 | 1.5 | 1400 | 120 | 2000–12000 | 70–10 | 67 |
| NEXT 22 | 2.2 | 1400 | 125 | 2000–14000 | 98–19 | 69 |
| NEXT 30 | 3 | 1400 | 140 | 2000–16000 | 103–32 | 70 |
| NEXT 40 | 4 | 1400 | 145 | 2000–18000 | 122–31 | 72 |
| NEXT 55 | 5.5 | 1450 | 185 | 5000–25000 | 117–10 | 73 |
| NEXT 75 | 7.5 | 1450 | 200 | 5000–28000 | 155–20 | 76 |