| Sr. | Doc. Name | Doc No. | Issue date | Project Area |
| 01 | INSTALLED HEPA FILTER LEAK TEST REPORT | HLT-16921 | July, 2021 | Solid Area |
| 02 | INSTALLED HEPA FILTER LEAK TEST REPORT | HLT-17021 | July, 2021 | Solid Area |
| 03 | INSTALLED HEPA FILTER LEAK TEST REPORT | HLT-17121 | July, 2021 | Solid Area |
| 04 | INSTALLED HEPA FILTER LEAK TEST REPORT | HLT-17321 | July, 2021 | Solid Area |