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The improved protection is largely provided by the positive pressure in the head covering. Respiratory protection for medical environments. In general, PAPRs can be described as respirators that protect the user by filtering out contaminants in the air and use a battery-operated blower to provide the user。which provide protection factors more than N95 respirators that its APFs is 10 . It is used in medical institutions to block the transmission of potentially infectious aerosols and patient blood, body fluids, secretions, etc. to medical personnel.These are 99.97% efficient against 0.3 micron particles.
Chengdu Ajshine Medical Technology
West China Hospital
of Sichuan University
Chengdu IDING Design Co., Ltd.
Fan Feng, Luo Wanlan, Liu Ju