100% brand new and high quality. 3 Layers of Protection. Dust proof, avian influenza, virus, haze, dust, pollen, particulate matter, PM2.5, bacteria, etc. Safe and breathable. Hypoallergenic,high filtration,capacity. Clean and helpful. Elastic ear-loops with no pressure to the ears. Provide some protection against dust, or some poisonous things.
How to use:
1. Open the mask. 2. The dark color is facing outward, and the light color is facing in. 3. Place the mask on the face with the bridge of the nose on the top; adjust the top wire by hand to fit the bridge of the nose completely. 4. Elastic ear hanging on the ear. 5. Adjust the size of the mask to completely cover the nose and mouth.