We've been using and running out of generic KN95 masks we got for free. I know these masks are not equivalent to an N95 because they use ear-loops but they do have a subtle breathing restriction. This was something I assumed meant the mask was working.

I read all the positive reviews for KF94 masks and decided to give them a try. So today I was trying on the BOTN KF94's we bought and they fit great but no subtle breathing restriction? I followed the instructions, formed the nose piece over my nose and made the ear-loops very tight and I could still breath relatively easy. Is this just how KF94 masks are?

I'm just concerned without that subtle breathing restriction feeling they're not blocking 94% of particles as claimed.