These things may be made in China and may or may not be “official” KN95s, but our children have used these exclusively in school and everywhere else from December 2021- May 2022, and our family has escaped COVID, even through Omicron, and now with the spring/early summer wave that took out half of my son’s first grade class, when masking was no longer required and our son was one of the few still using masks. I have been stocking up in anticipation of winter 2022-2023; these masks WORK, and since they don’t rest against one’s nose and mouth, (but create a seal around them) my kids prefer them to less effective cloth or surgical masks. Many layers, quality fusion of layers that doesn’t perforate all the way through like with some brands, sponge across nose bridge to create a better seal, adjustable ear loops, nose wire, and a great fit for small faces!