Bests & Worsts Reviews from Amazon

It took some research to figure out which masks to order on Amazon. So many companies, so many KN95 masks. I chose these by customer review. I found out after receiving them, you can check on the CDC website for the specs on how efficient the mask you have, by matching company, manufacturing plant and code number which should be included in every box of any KN95 masks you order. These had a very high efficiency rating, actually the highest possible for a KN95 mask.