The mask represents a new paradigm for respiratory and metabolic disease management and precise medicine because we can easily get breath specimens and analyze the chemical molecules in breath in real-time through daily masks
This cross-section of the smart mask shows the different layers that make it work, including a hydrogel for cooling the breath into a liquid, microchannels or capillaries for transporting the liquid, and a sensing reservoir where the samples are analyzed. Image Credit: Caltech/Wei Gao and Wenzheng Heng
