KN95 FFP2 4ply Key Specifications/Special Features: - Description: KHB Disposable mask - Filtration: Four-layer filtration, High-efficiency filtration, high-quality protection. -Material: First Layer:100% polypropylene; Second Layer:50% polypropylene,50% polyethylene; Third and Fourth Layer: 100% polypropylene - Bridge nose: Can be adjusted freely to ensure the fit to the face - The ear cord: Soft and elastic, which helps to fit the ear - Packing:10pcs/box - Filtering Category:0.3 μm particle filtration�95% - Air mass flow: 85L/min - Filter efficiency:�95.0 - Certificates: CE Certified - Payment: 100% payment in advance