Framing of the laser room is nearly complete. They have to finish half of the roof and then they can start installing the sheetrock.

There have been some concerns about dust levels, but a trend of the past three weeks shows that this weeks construction activity has not been abnormally dirty. I plotted dust monitors 9 (2k PSL), 7 (iLIGO HAM8 position), and 5 (beer garden).