医用口罩 Masks for medical use; Medical mask
外科手术口罩 Surgical mask
"非典"与口罩 SARS and Mask
手术口罩 Surgical mask; Surgical masks
外科口罩 Surgical mask
防护口罩 Protective Face Mask; Protective respirtor
麻醉口罩 Anaesthesia mask
防尘口罩 Respirator; Dust mask; Dust-Proof Mask; Anti-dust respirator
卫生口罩 Health gauze mask
防毒口罩 Anti-poison respirator
纱布口罩 Cotton cloth respirator; Gauze mask; Gauze face mask
防毒口罩 Anti-poison respirator
抛弃式防尘口罩 Filtering-Facepiece Respirators