Good quality, I am sure it is a level one mask. Water can not go through the first color layer. I tried to burn the second layer and it is good meltdown nonwoven. The aluminum piece is the weak point. I will give 5 stars if it is a bit thicker and half inch longer. The meltdown fabric in the middle layer can be hung on the palm because it is electrostatically charged and is able to capture very fine particle.