Foldable white maskproduct informationStyle: foldingWearing method: head-mountedExhalation valve: YesFiltration level: FFP2, KN95Color: white, grayActivated carbon: NoneExecutive standards: GB2626-2006, EN149: 2001Material compositionThe surface layer is 50g spunbond, the second layer is 45g hot air cotton, and the third layerIt is 30g KN95 filter material, and the inner layer is 30g PP spunbond.