Product Character 3-layer super filter functions to block all kinds of dust in the nasal cavity and easy breathing guaranteed Simple usage and good external appearance Hygienic and disposable packaging Fog free on the eyeglasses Comfortable and natural when talking Application Area Wear during all kinds of dusty conditions Yellow sand particles, other dust or air pollution Workers for textile factory, iron plant and other industries affected by particle Construction sites, subway, underground market, basement parking lots, dump yards etc. Driver for automobile and taxi, motorbike, garbage trucks etc. Visitors for hospital patients, traffic control officer, pedestrians, dental patients etc. Function and Effect Filter particles that cause respiratory problems. Breathe clean air. Directions for use Insert a set of filter caps into the nasal cavity (then the silicon clip fastens on Nasal septum) Materials Clip : 100% silicon, Filter : Nonwoven Cautions Dispose of once used according to the waste disposal regulations Do not use in case of respiration trouble or nasal skin irritation Only use Nose Mask for designated use