Table 4.
Removal times of the cases at the generation zone.
| No. | Door | Air Purifier | Removal Time at Generation Zone (min) | ||||
|---|---|---|---|---|---|---|---|
| On/Off | Fan Mode (Flow Rate) |
Air Cleaning Starting Time | 0.5 μm | 1 μm | 2.5 μm | ||
| 1 | Close | Off | - | - | 95 | 92 | 35 |
| 2 | Close | On | Low (153 CFM) |
After dental operation | 11 | 13 | 15 |
| 3 | Close | On | High (312 CFM) |
After dental operation | 15 | 18.5 | 20 |
| 4 | Close | On | High (312 CFM) |
At the beginning of the dental operation | 12 | 14.5 | 15 |
| 5 | Open | Off | - | - | 18 | 26.5 | 28 |
| 6 | Open | On | High (312 CFM) |
At the beginning of the dental operation | 8 | 12.5 | 15 |