There is such a massive need for disposable masks in the market right now and even more confusion about it. Even the sellers and buyers themselves are confused about which type they are selling or buying. We have seen transactions in which millions of the wrong type of the masks were sold because of the lack of understanding.
The disposable face masks can look virtually identical - 3 layers, blue exterior with white trim. However, the differences do matter and have very real impacts on the safety of the end-user.
On May 7, 2020, the FDA revised their Emergency Use Authorization (EUA) for Non-NIOSH Approved Respirators During the COVID-19 Pandemic. Prior to this change, the Appendix A list had over 80 Chinese companies that were approved to have their respirators imported into the US. However, after testing was done by National Personal Protective Technology Laboratory (NPPTL), many samples did not meet the correct standards. All of these reports were publicly published by the CDC. Now, the Appendix A list has been reduced to only 14 companies. However, this is not to say that ALL of the companies that were removed from the list were of poor or unacceptable quality. The FDA has put stricter policies in place and companies are able to re-apply under these new guidelines.