this 3-layer protective mask is excellent for protecting people from pollen, bacteria, allergens, dust, chemicals and smoke. contains a wire in the adjustable nose section to ensure a perfect fit. The inner layer is made of soft, colorless, soft tissue for the skin. non-medical face mask is ideal for doctor's offices, hospital care, dental clinics, caterers, beauticians, tattoo shops, beauty shops for fall. CE Certificate, ISO, FDA. Standard: YY 0469-2011