The breakthrough of the new sex doll lies in the photocatalytic self-cleaning system. The titanium dioxide nanotubes coated on the surface decompose organic residues under dim light, and cooperate with the pulse sterilization of deep ultraviolet LED to achieve medical-grade cleanliness standards. Chemical cleaning of traditional torso sex dolls has become history – the product completes self-disinfection every time it comes into contact with sunlight, and the residual microorganisms are reduced to 1/50 of the operating room standard.