Round-Edge Skirt [Pat.]
The TUSA mask features a round mold, special cross-sectionally shaped skirt fitting line (the outer end part of the silicone skirt touching the face) and molded by rolling the edge to the outside. When the skirt portion of the mask touches the face, the conventional mask is fitted with thin edge lines (Fig. 1), whereas with the TUSA mask, round-edge skirt is fitted on the face (Fig. 2), resulting in a soft-fit suppressing pressure and reducing creasing left on the face. This “planar fit, instead of linear fit” silicone skirt maintains a great seal and unprecedented comfort.
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