Product Name: Ear-hooking Face Mask Specification: 15*19 Packaging: Individual packaging Features: The outer layer is de-oiled gauze, the middle layer is a super-fine polypropylene fiber melt-blown material layer, and the inner layer is non-woven fabric. The mask has strong water repellency and breathability, and the effect of filtering small particles with virus aerosols or harmful dust is significant. All materials are non-toxic and harmless! Reminder: This mask cannot be washed, the inner layer is non-woven fabric!! This product is supervised and tested by the provincial labor protection articles supervision and testing station Product execution standard: GB1908A-2003 Production qualification certificate number: 015 Health license: Health ring word 2003 No. 0058