KF94 masks have been a good trade-off between protection and comfort. They don't filter to the same degree as N95, but they are a hell of a lot more comfortable to wear, and therefore more likely to be worn consistently.
I've tried KF94 and KN95 and find them more comfortable than N95 too. I've also noticed differences in brands. Some brands have more comfortable brands than others and that makes them easier to wear.
