It depends, but it’s possible that doubling up could help in some situations. The U.S. Centers for Disease Control and Prevention recommends wearing a cloth mask made with two or more layers, and ensuring it covers your nose and mouth.
WASHINGTON, July 12: President Donald Trump wore a mask during a visit to a military hospital on Saturday, the first time the president has been seen in public with the type of facial covering recommended by health officials as a precaution against spreading or becoming infected by the novel coronavirus.
DHARAN, Oct 10: Attendees at the mask party held at Fusion Club, Dharan on Friday enjoyed anonymity to the fullest. The mask dance party was organized by the Club and attendees were given away different masks at the entrance.
KATHMANDU, Feb 3: In a crowded microbus at Dholahity, a young man of around 20 seems to be desperate to look outside the window screen to find out where he has reached. But, the black smoke and heavy dust blurs his view and leaves him disoriented for a while. Suddenly, he heard the conductor shouting 'Satdobato!' and rushes toward the door.