Orange > HEPA filters didn’t change it then and still won’t change it.
I am not 100% sure, but I believe that pre-pandemic filtering was insufficient, it was known that it made infection go around, but nobody cared. As I did not research it in detail, I hesitate to claim it, so consider this an opinion.
> For now, I will wear a mask
As was already mentioned, not clear how masking became a symbol of rebellion. We wear a lot of stuff that restrict our movement – from socks to hats. There are so many serious topics to discuss about Covid: medical, educational, work, helping those who need help in any of those. The focus on anti-masking, anti-vaxxing is really very childish. Sad that the country is holding by this, and even sadder that our community does.