https://bonafidemasks.com/powecom-kn95/
Add a stick-in nose bridge seal for easier seal without having to be as tight or as carefully adjusted:
There are a lot of studies that have insufficient power to prove that surgical masks "work". There are a few studies of sufficient power to show genuine improvement from surgical masks--generally in the cohorts with greater risks.
As far as I know, there are zero sufficiently powered studies showing that surgical masks don't work or have a negative effect.
"Cannot prove for all cohorts" does NOT magically mean "does not work". The fact that some studies show that the masks have a provable effect shifts the Bayesian prior significantly towards "likely positive effect but difficult to prove without expensive trial".
After all, surgeons started wearing masks long before Covid-19.
https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD...
If I felt I needed to wear a PAPR, I would. Who cares what others think about it?
how about elastomerics? despite looking more intimidating they are less costly over time, more comfortable, and more effective (can expect fit factors in the thousands)
how about PAPRs? quite intimidating depending on the model, less costly over time, usually a lot more comfortable (breathing wise) and insanely more effective (can expect fit factors of 5000 or even sometimes hundreds of thousand)