✅ Delivery from New Jersey Warehouse, United States ✅ GREAT SAFETY: 4-Layer Protection with high quality ‘KF’ for Korea Filter & ’94’ for ave. 0.4um particulate matter filtered, min. 94% blocks up and protect against very small particles✅ GREAT SAFETY: 4-Layer Protection with high quality ‘KF’ for Korea Filter & ’94’ for ave. 0.4um particulate matter filtered, min. 94% blocks up and protect against very small particles ✅ Elastic ear loop: high elastic ear loop, pose less press to ears and face, avoid the uncomfortableness from long-time use. ✅ Each mask is packed individually for Hygienic purposes ✅ COMFORTABLE ERGONOMIC DESIGN: 3D Tri-folding Stereoscopic Design: Our mask covers not only the respiratory system but also the chin and maintains cleanliness as foundation, lipstick, etc come in less contact to the mask.