WS 170 K, WS 170 KB
| Certified since | Feb. 15, 2013 |
| Climate zone | Cool, temperate |
| Air flow range from… | 57 m3/h |
| Air flow range to… | 106 m3/h |
| Specific electric power | 0.37 Wh/m3 |
| Heat recovery rate | 86% |
| Humidity recovery (winter) | - |
| Humidity recovery (summer) | - |
| Efficiency ratio | 0.63 |
| Sound level of unit | 37.6 dB(A) |
| Company headquarters | Germany (DE) |