Est-ce que les masques faciaux périment ?
[:en]Can you wear expired face masks? How effective are expired face masks? A study tested 10 year-old 3M N95 masks compared to new masks and this is what they found.[:]
N95 masks
[:en]Can you wear expired face masks? How effective are expired face masks? A study tested 10 year-old 3M N95 masks compared to new masks and this is what they found.[:]
