Case | Height of opening (m) | Operation of exhaust fan |
Case 1 | 0.5 | Off |
Case 2 | 1 | Off |
Case 3 | 1.5 | Off |
Case 4 | 2 | Off |
Case 5 | 0.5 | On |
Case 6 | 1 | On |
Case 7 | 1.5 | On |
Case 8 | 2 | On |