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As we all know, COVID-19 is mainly transmitted by respiratory droplet transmission and contact transmission. With the deepening of people's understanding of the COVID-19, we can also foresee that in the future, human beings will face more challenges from unknown viruses
By wearing wearable head and neck devices, the Invisible Mask will form a double directional ultraviolet light shield around the human body. When the virus passes through the ultraviolet light mask, the virus will be killed, thus achieving the invisible protection of human health. The ultraviolet light can be turned on or off by touching the wearable necklace, which is conven