1.Confirm the top and bottom.
2.Stretch the mask.
3.Close to the face， wear the ear hanger， pullback the mask to completely cover
the nose and chin.
4.Press the flexible metal nosepiece to fit snugly around the nose.
Product Packaging 5pcsinapolybag300pksin one carton
Packing
Carton size 63*50*48cm
Gross weight 12.9kgs
Source: https://www.unisourcesgroup.com/a/Facemask/KN95/6.html