maggiejk, 
Canada gets the good stuff.
For $6.99 you can get a mask sample pack with a bunch of different sizes so you can figure out what size you want before you buy a whole pack of them.
I didn’t see anything like this in illmerica.
https://canadastrong.ca/products/ca-n95-sample-kit-disposable-respirator-mask-made-in-canada-95pfe