measure of trust in the content...one reason for "Cureus's" exceedingly low rating is that they allow only a few days for any "Peer Review"...so, everyone...be advised and take this paper with an appropriate dosage of salt...let's see if journals with IF's above 50 corroborate the paper's finding.
Considering that hospital staffs all use masks in the face of a constant stream of COVID infected patients, yet remain on the job for months, if not years, should tell you something about the value of masks...especially when worn intelligently.