File:Ventilation scenarios considered in the microbiology laboratory.jpg

English: Figure 8. Ventilation scenarios considered in the microbiology laboratory. Four scenarios A1, A2, C1, and C2 corresponding to two potential release locations (zone 1, scenarios A1 and C1; zone 5, scenarios A2 and C2). Ventilation regime in scenarios A1 and A2 represents a well-mixed ventilation, where airflow (arrows, with βik rates given as red numbers) is well balanced across zones and same extract ventilation (circled values) is considered in all zones. Ventilation regime in scenarios C1 and C2 represents airflow occurring from the corridor areas to the opposed side of the rooms, where extract ventilation is in place.