Table 5.
The travel time and concentration ratios of 6 cases at the corner of the dental office.
| No. | Door | Air Purifier | Travel Time (min) | Concentration Ratio | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| On/Off | Fan Mode (Flow Rate) | Air Cleaning Starting Time | 0.5 μm | 1 μm | 2.5 μm | 0.5 μm | 1 μm | 2.5 μm | ||
| 1 | Close | Off | - | - | 37 | 37 | 37 | 0.5 | 0.16 | 0.66 |
| 2 | Close | On | Low (153 CFM) | After dental operation | 36 | 36 | 36 | 0.33 | 0.1 | 0.4 |
| 3 | Close | On | High (312 CFM) | After dental operation | 36.5 | 36.5 | 36.5 | 0.33 | 0.11 | 0.5 |
| 4 | Close | On | High (312 CFM) | At the beginning of the dental operation | - | - | - | - | - | - |
| 5 | Open | Off | - | - | 6 | 6 | 6 | 0.26 | 0.11 | 0.5 |
| 6 | Open | On | High (312 CFM) | At the beginning of the dental operation | - | 21 | 21 | - | 0.016 | 0.06 |