New 2002-M
The surface layer is 40s gauze, the second layer is 30g KN95 filter material, the third layer is 80g hot air cotton, the fourth layer is 60g PP nonwoven fabric, the fifth layer is 60g hot air cotton, the inner layer is 40s gauze; a total of six layers.
New 9000-M
The surface layer is 60g PP nonwoven fabric, the second layer is 30g KN95 filter material, the third layer is 80g hot air cotton, the fourth layer is 20g hot air cotton, the fifth layer is 40g hot air cotton, the inner layer is 32s gauze; a total of six layers .