In order to assemble the pinhole camera, the framing camera, and the streak camera, a Class 1 (ISO 3) clean-room glovebox was built. Numbers of particles with sizes of 0.02 um ~ 1 um are all filtered out within 30 sec. The measured points are shown in the following figure and the time it takes to filter out dust particles with the corresponding locations are listed in the table.
| Tested points | 1 | 2 | 3 | 4 |
| Time to filter out all measurable particles (sec) | 20 | 30 | 15 | 30 |