Description: Focusing on Coal Workers’ Lung Diseases: A Comparative 0183;32;In China, there were two kinds of respirators: KN90\KN95\KN100 (not resistant to oil) and KP90\KP95\KP100 (resistant to oil) . The NIOSH required the N95 (95% filter efficiency) mask as the least depending on the workers’ exposure to different types of coal dust and crystalline silica . However, in China, field investigations suggested that 3
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
Care should be taken that correspondence that has a precedentialor general applica tion be so classified, or a copy be so classified, or a cross index made. BOLD FACE TYPE In the alphabetical section bold face type is used only to designate names of vessels. SUBJECT AND NAME TITLE GROUPS SUBJECT GROUPS. A F H L N P S Administration.
Edited byAii Asiiui Pzj'Dp dzivJ'dMary IP Moira CHAN YEUNG Wah Kit LAM Nan Shan ZHONG Respiratory Medicine An Asia