Product Description: High quality non-woven fabric, three-layer structure, soft and comfortable; Adopt high efficiency filter material melt spray cloth, safety and health; Nose clip design, fixed and adjustable; Ultrasonic heat sealing, beautiful and practical; Usage method: Take out the disposable mask, and confirm that the position of nose beam frame is above the mask; Fit one side of the ear rope of the mask to the face, and adjust it up and down to a proper position; Press the nose beam frame to make the mask and face fit tightly; Pull the fold of the mask downward to cover the chin; use: This product is only used as civilian mask during the outbreak of novel coronavirus (COVID-19), as daily protection for residents' life and enterprises' return to work. Not be used in any medical institution or any industry with special requirements for protection. Specification: 17.5cmx9.5cm This product is a non-medical device