COVID-19 Mask Filter Grille

cults3d

Grille Inserts for my COVID-19 Mask Caps Some makers have found a need to insert an additional protection layer to secure the filtration material, so these are made for that purpose. As some are more exposed than others I include some variation so you can determine which works best for your particular application. Just select one and insert it into the end of the mask underneath the cap. The directional option also provides additional protection for your filter.