It’s supposed to protect them but instead brings on the sickness. For this mask was produced not to generate profits on it’s end but for the cure of the disease on the other end. In other words once you put it on you’ll absorb the micro viruses they’ve created to make you buy their cure. It’s best not to cover up and absorb the true world around you.
FOOTNOTE- Yes, G-D willing this stays a fictional tale yet the effect of masks on preventing illnesses over the long run is one that have true side effects.