Serenity Rebreathing Oxygen Mask (RM) is a breathing aid that is worn over the nose and mouth in a shape like a normal mask. This mask has been produced domestically and this special mask is used as a support in distributing oxygen from the oxygen cylinder to the respiratory tract. Low poly is a polygon mesh in 3D computer graphics that has a relatively small number of polygons. Low poly meshes occur in real-time applications as contrast with high-poly meshes in animated movies and special effects of the same era.