Description: Analysis of face mask testing standards and certification 1. China's requirements for face mask Civil face mask standard GBT 326102016 and labor protection face mask standard gb26262006. a. GBT 326102016 divides face mask into four levels According to the standard, the level of mask protection is divided into four grades from low to high: D, C, B, A, corresponding to different air quality conditions.
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
Nov 16, 2018 · In China, there were two kinds of respiratorsKN90\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
PDF China has high and increasing annual rates of occupational lung diseases such as pneumoconiosis and silicosis. In contrast, Australia and the Find, read and cite all the research you