Those masks are completely worthless. N95 masks must create a complete seal all the way around in order to have any effect at all, otherwise the air just passes underneath the edges in spots where there is no seal when you breathe. Those masks don't create a seal anywhere at all, and air will simply follow the path of least resistance and pass underneath the edges on all sides rather than passing through the mask material. You'll just be breathing unfiltered room air while you walk around looking like a virtue signalling moron.

Real N95 masks require fit testing to ensure that there is a 360 degree complete seal, that testing requires specialized equipment and 15-20 minutes minimum to perform, and it only applies to the specific brand and size that you wear during the testing. If you want to wear a different size, or a different brand, you have to go through the fit testing again. And real N95 masks are uncomfortable as hell to wear for more than a few minutes at a time because you generally have to cinch the straps really tight in order to create a proper seal against your face. If they're comfortable, they aren't working.