THE MAIN PART OF THE MASKS IS 100% COTTON.
Contains 3 layers of thick Cotton to keep it firm but at the same time sufficiently permeable to allow inhaled air to flow through the material, not from the sides of the mask.
COTTON ALSO ALLOWS THEM TO BE WASHED AND IRONED REPEATEDLY.
The materials used allow the mask to be reused.
THIS DEVICE IS NOT A MEDICAL DEVICE.
IT IS ADVISABLE TO WASH AND IRON THE MASK BEFORE & AFTER EACH WEARING.