And you are even going to bother to read the evidence that
@jtuk has sent to you that talks about N95s being the most effective?
Nobody is disuputing that medical grade masks used in clinical settings have evidence for being effective.
What has been pointed out to you repeatedly is that:
a) They are needed by the medical profession so others should not be taking any of the limited supply
b) They are only effective if used according to proper clinical practice - that means fitting them properly, making sure they are kept sterile when fitted, not touching them at all while they are being worn, and replacing them after half an hour (or sooner if they get damp), among other things. This is simply not possible outside of a clinical setting.