Should passengers be double masking on planes? By The Washington Post Share In recent months, as new and more-transmissible variants of the coronavirus have emerged, public figures such as US President Joe Biden and infectious-disease expert Anthony Fauci have been seen wearing two face masks. And as the trend made headlines and became more popular, health officials have recently clarified that while the tactic could be useful, it is not yet one borne of official health guidance but rather a "common sense" measure. "You probably have seen me wearing a double mask . . . it certainly can't hurt and might help, but it doesn't yet reach the point of an official recommendation from the CDC because of the lack of data," Fauci said on Tuesday in a Washington Post Live interview when asked about the possibility of a double-masking recommendation by the Centers for Disease Control and Prevention.