| Lineup Blauberg AirWall Bio | Maximum airflow, m³/h | Sound pressure level LpA at 3 m, dB(A) | Heat recovery efficiency, max, % | Preheater | Reheater |
|---|---|---|---|---|---|
| 75 | 27 | 98 | Electric |
|
|
| 75 | 27 | 98 | Electric | Electric | |
| 75 | 27 | 85 | Electric |
|
|
| 75 | 27 | 85 | Electric | Electric |