A Filter Face Mask is a mask that features a cloth pocket with replaceable activated carbon filter inserts. The mask can sometimes be made from thin foam and feature a vent system for easier breathing (some provide better inhaling and others provide a better exhaling system) and better isolation of the nose and mouth from the particles. The main goal of a face mask filter is to block airborne contaminants, and this one gets the job done without trapping moisture. The offered Filter Face Mask captures a high percentage of the virus’s particles. It is very effective.