Main Features: ● 4 Layer Filtration System. Efficient Isolation. Non-Oily Particulate Filtering Effect > 95% ● Nano-Layer fltration protects you from vir-uses, dust, car exhaust, pollen, and more. ● 3D Breathable Space. Closer to the face for tighter protection. Soft and breathable, ideal for sensitive skin and allergies. ● Foldable Design is easy to store. ● Adjustable Nose Bridge. Low irritation & tight fits & stop air leakage. ● Elastic Ear Band. Wear long term without feeling any pressure on your ears. Specification Type: KN95 4 Layers Protective Face Mask Color: White Material: Non-woven Cloth, Eletrostatic Cotton Filter, Nano Membrane Filter Layer: 4 Layers Non-Oily Particulate Filtering Effect: > 95% Quantity: 10PCS , 20PCS , 50PCS Certification: CE, FDA Package Contents 4 Layers KN95 Disposable Protective Face Mask (10PCS , 20PCS , 50PCS Options)