发明授权
US07958889B1 Protective face cover and moldable attachment 有权
防护面罩和可模制附件

Protective face cover and moldable attachment
摘要:
A protective face cover, mask or respirator with a moldable attachment that allows different devices or solids to be inserted into and withdrawn from inside the face cover of the wearer without removing it and the moldable attachment itself. The same moldable attachment can contain also an exhalation port to provide the mask with exhalation capability.
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