Sumana Harihareswara has posted her latest synthesis "My Current Approach To Reducing My COVID Risk" at her blog
https://www.harihareswara.net/posts/2023/my-current-covid-risk-approach/
brainwane is a software consultant who travels for work. While her post is long, it's impeccably organized and full of useful detail I could understand. When she boosted here https://brainwane.dreamwidth.org/198077.html,
foxfirefey commented
And goes into a deep dive re p100 masks and transparent masks.