3. Description of Controlled Cleaning Experiments in the Different Indoor Settings.
| Location | Target area (m2) | Type of surface cleaned | Distance from instruments inlet (cm) | Volume of cleaning solution applied (mL) | ACR (h–1) | Room volume (m3) | Dates of experiments |
|---|---|---|---|---|---|---|---|
| Saskatoon lab | 3.6 | Linoleum | 130–250 | 24–44 | 9.14 ± 2.72 | 206.5 | Mar.–Aug. 2023 |
| Saskatoon office | 3.6 | Linoleum | 210–270 | 25–49 | 5.85 ± 0.82 | 42.5 | Sep. 2021 |
| Toronto lab | 4.1 | Tile | 100–130 | 50–60 | 0.85 | 58.9 | May–July 2021 |
| Bathroom | 1.9 | Tile | 120–170 | ∼30 | 0.92 ± 0.62 | 22.1 | Jan.–Aug. 2021 |
a
Two adjacent separate target areas (each 4.1 m2) were alternately cleaned.