Okay, I'm 50% altruistic in protecting my family, haha. If those weren't the numbers you were referring to, I'm just looking at previous mask viral efficacy studies during pre-COVID times. Regular hand-washing and sanitizing if I'm even remotely around people, and even deciding to home-school* the kid, all in an effort to keep us safe. I'm not a virus-denier, but I disagree with most of the "news" and "science" being pushed by the media and politicians and have from the beginning.I don't 100% agree with your numbers but...that doesn't matter.
At least you are protecting somebody with that application. Actually your are protecting yourself & your household. Which is way way way better than doing nothing.
*Disclaimer- the home-schooling thing was partially a COVID decision, but the politicization of schools was also a large factor.