A face shield is an additional PPE item that can be used along with a face mask. This face shield is easy to wear and fits most adult head sizes. Transparent PET Plastic Shield. Anti-fog. Wrap-around design provides over-the-top, side and front face protection. Adjustable elastic which is suitable for both children and adults. Not intended for medical use. Masks do not provide protection from germs, viruses or other contaminants.. Shield is .25 mm thick.