Description: How to Select the Right Medical Masks to Protect You and Compared with long medical surgical masks and ordinary medical masks, medical protective masks have a good fit with the wearer’s face, can filter particles in the air, and block pollutants such as droplets, blood, body fluids and secretions The filtration efficiency of nonoily particles can reach 95%.
Type: Disposable / Reusable
Function: Coronavirus, Anti-pollution, PM2.5, cold, dust, pollen, allergy
Package: 10pcs/20pcs/50pcs per pack
Certification: CE, FDA, ISO
Min Order: 1000 Pieces
NAVY FILING MANUAL (FOURTH EDITION) AUGUST 27, 1941. 1. The Secretary of the Navy, on July 5, 1923, directed that the Navy Filing Manual as compiled by the Board appointed for the purpose be adopted for use and placed in effect throughout the entire Naval Service with the exception of the United States Marine Corps.
Edited byAii Asiiui Pzj'Dp dzivJ'dMary IP Moira CHAN YEUNG Wah Kit LAM Nan Shan ZHONG Respiratory Medicine An Asia