Use an N95 mask, keep it in a bag & reuse after 4 days: AIIMS to doctors

A day after asking doctors to reuse their masks four times, authorities from the All India Institute of Medical Sciences (AIIMS), New Delhi issued a standard operating procedure for the same. After using an N95 mask for a day, it has to be numbered and kept in a bag for four days before reusing it, the standard operating procedure read.