KN95 White Disposable Face Masks with Flow Exhalation ValveKN95 level respiratory protection, filtering efficiency up to 95%, mesh breathable composite fabric, suitable for all seasons. 3 dimensional riding mask with three dimensional filter, tight fit, anti pollen, anti smoke, anti dust, anti fog Mask After safety certified disposable multi layer breathing mask helps prevent you from inhaling fine particles. It filters out dust, pollen, mites, grass clippings, pet hair, dandruff, beauty, wood, construction,