The "Dlrf" (Dynamic Layer Response Framework) refers to the flexible inner mesh. This framework allows the Unit to adhere to the wearer's face without restricting micro-expressions. When the wearer speaks or moves their jaw, the mask stretches proportionally rather than bunching, reducing the "floating face" effect common in lower-grade prosthetics.
If you have a specific source where you encountered this term (e.g., a website, image, or document), providing that context would allow for a more targeted analysis. Dlrf 17 Hpsart Real Face Mask 00117