N Medical 3D Respirator Face Mask KN95 (GB2626-2019) are 5 layers respirators designed for medical use. The all new 3D design provides a better wearing experience compares to traditional KN95 with better contouring around wear's face. They are also more effective in protecting wears against smaller bacteria particles compared to traditional surgical masks. The inner layer of the face mask respirator is made of low lint materials to reduce sensitivity to skin and nose. The respirators' filters are designed to have a high filtration capacity whilst retaining low breathing resistance, allowing for easy and comfortable breathing for prolonged periods of time. The flexible ear loop is made with extra stretchable elastic to provide extra comfort for all day wear. Product Features Product name: N Medical 3D Respirator Face Mask KN95 GB2626-2019 Brand: N Medical Size: Adult Standard Packaging: Individual seal packed​ Color: White Respirator Material: Latex free, 5 layers of Low Lint Non-woven Fabric, Melt-blown nonwoven fabric SKU: NM-FMKN9530 Features: Highly protective face mask respirators that meet international standards equivalent/similar to N95. Product Reference: https://www.nmedicalsupplies.com/products/nm-ffp2 Pcs/Unit: 30 Units/Ctn: 1 Manufacturer Specifications: KN95 (GB2626-2019) - Similar specs to N95 NOISH-42 CFR84. Approved by Chinese Authority GB2626-2019 For details about respirators, please refer to: https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2-kn95-n95-filtering-facepiece-respirator-classes-tb.pdf