5-Layer Mask Efficiency 95%Our disposable face mask has a 5-layer filtration system, which has been tested to filter more than 95% of air particles for better respiratory protection. This includes smoke, pollen and other pollutants 3D SAFE FIT DESIGNThe 3D structure of these masks is designed to ensure safety while avoiding spoiling your makeup, providing more protection than standard disposable 3-ply masks. Also suitable for eyeglass wearers Comfortable and non-irritatingThe inner layer of the mask is made of non-irritating materials to the skin and has no odor. Built-in adjustable nose bridge, high elasticity and wider earrings, comfortable to wear even for long periods of time Mask folded size: 14.5*14CM, suitable for most face shapes Package includes: 20*FFP2 protective mask (black) Scope of application: Wearing methods for protection against various types of particulate matter (not suitable for oxygen-deficient environments, underwater operations, escape and fire-fighting respiratory protection): 1. Flatten the mask with the bridge of the nose facing up. 2. As for the front of the mouth, nose and chin on the white cloth, adjust the buckles on both sides of the mask to the best position 3. Adjust the bridge of the nose to fit it with the bridge of the nose Dimensions may vary slightly due to manual measurements Due to the different display screens, there may be some differences between the color and the real object, thank you