According to the results of recent research carried out by the University of Massachusetts Lowell in conjunction with the California Baptist University, the use of surgical masks used can produce a decrease in effectiveness of 65% to 25%, which ironically makes them more dangerous than not wearing a mask, given the aggravating factor of feeling false security.
That is why from Biosalud we always advise our clients to follow the instructions related to the time of use that always appears in our packaging, which in the case of surgical masks is 4 hours; as long as they do not get wet or deteriorate, in which case they should be replaced.