This HRM Premium Mouth Nose Mask is neither a medical device nor personal protective equipment (PPE) HRM Textil GmbH does not assume any product liability Single jersey fabric 2 layers No centre seam Set of 3 With elasticated band High quality workmanship and modern design AFNOR standard certified (French standard) Size S: optimal for children, adolescents and people with narrow faces, size N: for adults We recommend to wash the product before wearing it for the first time Please note that the mask should be replaced regularly and can be washed at up to 65°C Due to health protection and hygiene, this item cannot be exchanged