“There are hundreds of different brands making a lot of claims, that’s why we’re testing the filtration capabilities of every mask in our laboratory to see how they measure up.”
Lab filtration numbers for hundreds of masks beat trusting the label on the box. Now check who runs the lab. Armbrust sells masks, and Armbrust’s own KN95 and surgical masks sit at the top of their own rankings. The data could be honest. The setup is still a referee grading his own team.