Double protection Covid mask

cults3d

Offer double protection with this dual-entry face mask. For maximum filtration for physical activities. A face mask design to help you fight airborne fine particles. Due to its watertightness, care must be taken to avoid the possible accumulation of CO². Clean it well before use to remove dust residues from the printing material, you can even apply a coat of latex or natural varnish suitable for this purpose. . Its operation requires a filter part (technical filter material, cotton or gauze) and flat elastic bands. It is necessary to make a disc with a diameter of 60 mm and a thickness of 4 mm. A second set of screens is supplied for a filtration thickness of 14 mm. The "cartridge" is then closed and the air is filtered. then simply adjust the elastics to his waist. You can also warm the mask slightly (50-60° C) so that it fits the shape of your face perfectly (use a cloth to protect yourself). this model is designed to be manufactured without support but you can use it to have an optimal quality of the elastic fixing rings. More projects : https://cults3d.com/fr/utilisateurs/3d-fabric-jean-pierre/cr%C3%A9ations Next: https://twitter.com/fabricejeanpier