Oh hi!
The things I post are generally focused on activism and awareness moreso than specific strategies or data.
But also, I'd be happy to share some thoughts and links that could be helpful! As an individual, I generally approach this stuff under the philosophy of a Swiss Cheese Model + precautionary principle to stack together as many protective measures as I reasonably can (no matter how small the plausible benefit is).
But I read that you're working with limited resources for a shared space here, and I think that necessitates a more strategic focus.
The current SARS-2 vaccines don't prevent infection or transmission. They reduce the risk of mortality and poor outcomes from an infection, which is very important!! But they'll contribute little to office biohazard control.
The current tests for SARS-2 continue to become less reliable, less accessible, and more expensive. Asymptomatic and Pre-symptomatic infections have been estimated to be a major (or primary, in some studies) cause of transmission. Current rapid tests are known to mostly fail to detect the virus in samples from those who aren't experiencing symptoms. Honestly, I think it's difficult to justify any negative test result being authoritative unless multiple are used over the course of a week. Which gets pretty pricey really quick.
So if you take ^^ those things ^^ into account, that means people can be infectious without knowing AND there aren't accessible/affordable tests that could reliably detect an infectious period. Well, fuck! That's really challenging to confront.
And thus, I'd focus primarily on cleaning the air. Two effective approaches for this that work great together are using respirators for source control (no exhalation valves) and running supplemental air filtration units.
Firstly, the respirators. You say you have a supply of KN95s to distribute, which is a good place to start! Unfortunately, if it's a KN95, that means it probably has ear loops. And if it has ear loops, then it won't actually do a consistent job of filtering the virus out of the air.
So, if you can, I really do think it's worth it to try acquiring better respirators that actually provide respiratory protection. The 3m Aura is my top pick. But if you can't source anything better, there are some mask hacks that can improve those KN95s somewhat.
Regardless of what masks you're working with, it is incredibly important to ensure that these tools are being worn properly at all times within shared spaces.
This can be a pretty big ask for some people, and inaccessibly impossible for others. So there needs to be a shared understanding that any moments lifting a mask must be minimized as much as reasonably possible. One consideration for this is that acting calmly & quietly can reduce the amount of air that's inhaled & exhaled.
Secondly, the filtration units. I saw you commented about CR Boxes, and fuck yea!!! They are awesome devices that are very cost-effective for moving clean air around. Ideally, determining how many you want requires measuring the dimensions of your space and crunching some numbers.
But unless you have many of the boxes, this will likely work out such that you'll want to be running them on maximum power when people are in the space. Joey Fox has many good posts up on medium about sorting out the technical details if you want to dive deeper.
As for your last question, what to do in the event of confirmed COVID? Isolation for a minimum of 10 days & until all symptoms have subsided. Support those who are recovering however you can. Do whatever is needed to get 2 courses of Paxlovid & 1 course of Metformin started as soon as possible.
