@BowsacNoodle @Shadowman311 OK, I understated the requirements for BSL-2 lab facilities; per the CDC and common sense:
"All procedures that can cause infection from aerosols or splashes are performed within a biological safety cabinet (BSC)"
Which is evidently "just a hood," all labs should have one anyway for dangerous chemicals work, and per Wikipedia there's a bunch of hood designs that avoid sucking in lots of unfiltered air which could contaminate what you're working on.
Per that article, gloveboxes are a BSL-4 thing (along with a lot else!), although I think I remember some people claiming they had "enhanced" BSL-2 labs due to their having gloveboxes.
In all these BSL-2 cases, the big problem is will the researcher actually use a BSC at all times it's required? Which could be beyond the "infection from aerosols or splashes" cited above. Drag their stuff off their lab bench area to the BSC, maybe even including mice, then back?
And if you're testing your mad scientist respiratory disease gain of function creation like COVID on humanized mice (transgenic with human cells in the important places), after inoculation you need to keep them in a negative pressure system so they don't spread it.
The PRC is notoriously lax in doing the needfull, multiple SARS-COV(-1) escapes in Beijing, Steven Mosher even reporting that pre-COVID one Beijing lab worker was selling dead animals for food instead of burning them....
The WIV notoriously, after building their first Official civilian BSL-4 lab with the French, kicked out as soon as it was done, violating the agreement they French would then teach them out to use it. And long pre-COVID the State Department was reporting they were sloppy. See also the picture with a freezer that had seals which weren't where they were supposed to be.
Also worth reading up on Feynman's cargo cult science concept if you've not heard of it before, he first observed it while on sabbatical in Brazil. Heh, when he gave them a lecture on their failings, he cited two students who'd escaped it ... both of whom later told him they'd learned science basically outside the system of this university when their professors were too busy with WWII work to do normal teaching and supervision.
https://www.cdc.gov/training/quicklearns/biosafety/
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