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Experimental design to evaluate the effectiveness of the presence of UVC light in the HVAC against microorganisms. The incubation time was 8 days for all plates
| Petri dish # | Air condition | Incubation temperature (± 2 °C) |
|---|---|---|
| 1 | Exposure to the air flux after shutdown of UVC | 35 |
| 2 | ||
| 3 | 21 | |
| 4 | ||
| 5 | Exposure to the air flux after 24 h of UVC being on | 35 |
| 6 | ||
| 7 | 21 | |
| 8 |
