Soft and breathable.Functional nose pads can prevent fogging and isolate outside air.Three-layer structure design, suitable for long-term skin wear.Elastic with ear hook, breathing softly.Elastic ear straps, easy to stretch and wear.High-efficiency filtration: Non-woven fabric filters large particles, PM2.5 is adsorbed by medium-level electrostatic cotton, smog, ventilation, and materials inside.Material: Non-wovenSize:17.5cmx9.5cm (6.89inx3.74in)The package includes:50pcs mask