pollution-free

英[pə'luːʃnfr'iː] 美[pə'luːʃnfr'iː]
  • 无污染的
  • damage n.损害;损失;毁坏vt.损害;毁坏
  • pollution n.污染;污染物
    1. Respirators should only be removed when the wearer is in an area that is considered free of airborne hazards, including confirmed or suspected influenza patients.
      呼吸防护口罩只能在无污染的环境中,包括无确诊或疑似流感病人的环境中摘除。