This article focuses on the testing and evaluation of gas protective masks based on subjective aspects. since most studies focus on objective indicators without ascertaining the opinions of those who use gas protective masks. Three types of modern anti-gas protective masks were selected for testing. Multi-criteria decision making and the expert method were used to develop the criteria. https://www.spidertattooz.com/CND-Shellac-Be-Demure-0-5oz-p13568/