No cytotoxicity, no irritation, no sensitivity, no sterility, no pigmentation; Good air permeability, easy to apply to the surface, fast adsorption, infection particles; Targeted and highly repair to wound cells.Reduces the death of normal cells; Unique black fiber pile;Fine texture;Soft, with the benefits: 1. Pure biological; 2. Have't melanin, prevent adhesion, promote healing and resist infection; 3. Promote rapid wound healing, anti-infection and strong adsorption; 4. To cover the use of "window" treatment without damage to the surface; 5. To solve the medical problem, both residual and infected.