Experience the clear difference between Air Queen Mask. Ergonomic design provides a comfortable, perfect fit. It perfectly covers the nose to the chin and adheres to the face. It is comfortable to breathe when worn and boasts a high sense of stability. Difference between nanofiber filter and general filter. * Existing electrostatic filter-Due to the nature of the existing regular filter, filtering efficiency will drop sharply when moisture is generated by breathing or when moisture is introduced from the outside. * Our company's nanofiber filter-Because it filters with AirQueen's fine nanofiber structure, it maintains high efficiency throughout the 24 hours even when it comes in contact with moisture. FDA CE HAHaL certificate