DescriptionFeatures: Features: Flexible, Adjustable Nose Bridge; Ultra-Soft Elasticized Straps; 9" W x 6" H Universal Fit with Adjustable Stopper; Machine Washable & Reusable 100% Cotton; High Filtration Efficiency with PM-25 Activated Carbon Filter; Lightweight and Breathable; Ergonomic Shape Protects Mouth and Chin; Mask Includes Two PM2.5 Filters; Dimensions: 6" H x 4 ½" W; Packing: 5 pieces per Bag; Minimum Quantity: 50 pieces per box