Kubás, JozefKollár, Boris2023-06-222023-06-2220231336-00192730-0544http://drepo.uniza.sk/handle/hdluniza/871Personal protective equipment finds its application in the civil protection system, especially during emergencies with the release of a hazardous substance. In a crisis event requiring the use of personal protective equipment, it is necessary for people to be able to use this equipment. The most common means of protection in civil protection warehouses are protective masks. Therefore, in this article, we have focused on comparing the CM-4 type protective masks and the more modern CM-5 and CM-6 variants through pilot testing. We used practical exercises for students of the Faculty of Security Engineering within the Civil Protection course to obtain data that allowed us to compare the protective masks. The aim of this paper is also to present a developed testing method that can be used to evaluate protective masks focusing on subjective qualitative characteristics.skhttp://creativecommons.org/licenses/by/4.0/Civil protectionpersonal protective equipmentquality of lifeprotective masksArticlehttps://doi.org/10.26552/krm.C.2023.1.54-63