PANDA SUPERSTORE Outdoor Anti-dust/Anti-Haze PM2.5 Antibacterial Breathable Summer Thin Masks Size: 9.4"*5.9". Color: classic black. The number of products: a mask + four stereo filter. Applicable seasons: spring or summer. Main components: antibacterial cotton cloth + pure cotton cloth + PM2. 5 filter cloth. Filter components: spunbonded non-woven cloth + electrostatic dust technology filter cloth. Wearing is cool not hot, deodorant and antibacterial effect is well. While you wear it can keep comfortable for a long time. The workmanship is exquisite and ventilation is well. The ventilation design is unique. The three-dimensional design is able to wear comfortably and breathe more smoothly.and breathably. Product features: Anti PM2.5 particles, dustproof, anti fog and haze, car exhaust, secondhand smoke, preventing pollen. When you go to outdoor sports with masks to protect the face and avoiding being sunburned. It can protect the skin. PM2.5 filter is frist to use large three-dimensional 360 degree seamless design. Adding environmental protection high density bridge of the nose pad and S type hook. It can freely switch between over-the-ear and hanging head.