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| Fan type | Measurement category | Efficiency category (pressure) | Efficiency grade (N) |
| Axial fan |
A, C B, D |
static total |
40 58 |
| Centrifugal fan with forward curved blades and centrifugal fan with centrifugal blades |
A, C B, D |
static total |
44 49 |
| Centrifugal fan with backward curved blades without housing | A, C | static | 62 |
| Centrifugal fan with backward curved blades with housing |
A, C B, D |
static total |
61 64 |
| Mixed flow fan |
A, C B, D |
static total |
50 62 |
| Cross flow fan | B, D | total | 21 |
| Fan type | Measurement category | Efficiency category (pressure) | Minimum efficiency grades (N) |
| Axial fans |
A, C B, D |
static total |
50 64 |
| Forward curved centrifugal fans < 5 kW and backward inclined centrifugal fans |
A, C B, D |
static total |
52 57 |
| Other centrifugal fans |
A, C B, D |
static total |
64 67 |
| Mixed flow fans |
A, C B, D |
static total |
57 + 7 (a-45) / 25 67 |
| Jet fans ≥ 750 W | E | 50 |
