The packaging material for our wipes is a laminate made from PET and Polyethylene. We use this material to keep the fragrance in the package. This is why we use the symbol "recycling number 7" which as we know is not not the clearest symbol because it's associated with BPA plastics. We would have to use both the PE and the PET symbol otherwise but decided to use "recycling number 7". BPA only exists in polycarbonate or rigid plastics that was previously used in baby bottles, epoxy and curable glue. Our type of laminate is accepted by COSMOS (Eco certification) as it is possible to recycle it.