Howdy! First and foremost, if you're wondering whether to choose between these and standard KN95 masks, I'd highly recommend these as they are much more comfortable, aesthetically pleasing, and come individually packed unlike most KN95 packs. Furthermore, these masks generally perform just as well if not better than comparative KN95 masks that have received US CDC emergency approval for use.
I'm a about the average sized American and was initially worried as these are Korean products that they may run slightly small, but that is not the case here as they fit just perfectly. My favorite feature is how the mask doesn't ride up your face like traditional bi-fold masks. Be Healthy USA was also very prompt in their shipping and I love supporting another great small business! Will definitely be buying more soon.