▎ 摘　　要

NOVELTY - A self-cleaning respirator comprises at least two layers of nonwoven fabric mixed coordination metal carbon nanofilm filter layer, set between the at least two nonwoven fabric, a mask belt, set at two ends of at least two layers of nonwoven fabric where the mixed metal carbon nanofilm filter layer comprises melt blown fibers and mixed metal carbon nanofilm fragments embedded in the melt blown fibers. USE - Self-cleaning respirator based on mixed coordination metal carbon nano-film. ADVANTAGE - The self-cleaning respirator has efficient filtering performance, hydrophobic performance and good spectral absorption characteristics. The activity of the mixed coordination metal under the illumination condition is activated by chemical bond to make the virus on the mask lose activity. The mask can be quickly sterilized and sterilized by the method of light sterilizing to improve the antibacterial and antiviral performance of the mask to meet the requirement of long-time wearing and repeated use. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of self-cleaning mask based on mixed-coordination metal carbon nanofilm, which involves growing a mixed coordination metal carbon nanofilm on a silicon substrate, and peeling the mixed coordination metal carbon nanofilm from the silicon substrate to obtain mixed coordination metal carbon nanofilm fragments, providing melt blown fibers, and using ultrasonic compaction method to embed the mixed coordination metal carbon nano film fragments into the melt blown fibers to obtain a mixed coordination metal carbon nano film filter layer, providing at least two layers of nonwoven fabrics, and stacking the mixed-coordination metal carbon nano film filter layer between the at least two layers of non-woven fabrics, providing a mask belt, and connecting the mask belt to both ends of the at least two layers of non-woven fabrics.