humidifier [hjuˈmɪdəˌfaɪɚ]

例句:

• Use a humidifier in heated rooms to prevent dry air irritating your throat.
  在开暖气的房间里可用加湿器，防止吸入干燥空气造成喉咙不适。
  
• Steam humidifier are often used because of their simplicity.
  蒸气加湿器之所以常为人们所采用,主要是由于它很简单.
  
• Avoid dry atmosphere by using a humidifier in my room.
  给房间里添个加湿器,以增加湿度.
  
• Use a humidifier to stop central heating from drying out the mucous membranes lining your nose and upper airways.
  来自BBC
• In the meantime, my husband had set up a modern version of outdoor night air -- a cool-mist humidifier -- in Liam's room.
  来自CNN