Description Features: 1.Material: non woven fabric and meltblown fabric, 4-layer filtering 2.Custom-fit nosepiece adjusts to the contours of your face to provide an enjoyable fit. 3.Flexible fit to ensure a soft and comfortable fit 4.Do not recommend using them for more than 48 hours to ensure the best for your safety 5.Please take care and stay safe. Hope you all the best Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Description: 1. Material: non-woven fabric 2. Mask style: hanging ear type 3. Function: anti-smog, dust-proof includes: 10/20/50/100Pcs x Face Mask About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.