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Far‐UVC exposure scenarios for each of the study groups A–E.
| Group (no. of participants) | Study day 1 | Study day 2 | Study day 3 |
|---|---|---|---|
| A (8) | NO | DUTY | ALL |
| B (4) | DUTY | ALL | NO |
| C (7) | ALL | NO | DUTY |
| D (10) | DUTY | ALL | NO |
| E (8) | NO | ALL | DUTY |
Note: NO indicates a day when there was no Far‐UVC exposure, DUTY a day when a duty cycle of 30 s on and 270 s off for the KrCl excimer lamps was deployed and ALL when the KrCl excimer lamps were continuously emitting for the full day.
