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Technical data of evaluated OTs: four with UWD and one hybrid with UDV ventilation.
| Ventilation Principle | Area (m²) | Volume (m³) | Supply Air (m3/h) | Extraction Air (m3/h) | Air Changes per Hour (1/h) | Surgical Lamps |
|---|---|---|---|---|---|---|
| UWD | 37 | 100 | 1.998 | 1.328 | 20 | 2 |
| UDV | 100 | 270 | 15.480 | 15.120 | 57 | 2 |
OTs, operating theatres; UWD, upward displacement airflow; UDV, unidirectional downward airflow.
