Living in Asia for a few years after the military...there was a list of face masks that were poor quality and a few on that list were listed as dangerous due to the chemicals (colors) used in the face mask.
At that time, I always got my supply of medical face masks from the hospital. Thus, stayed with one of the approved brands of face mask.
Today, about a month ago, I came across articles about poor quality hand sanitizers. A lot of fake and/or dangerous stuff out there...gotta be careful of what you buy.
Many of the stuff were manufactured out of Asia.
wrbtrader