问：
幼儿房间，我想购买改善室内空气质素的负离子空气净化器，请问你，这台机器真的有效使用呢？
答：
是的！
What is the current negative ions to indoor air filters are really useful?
Question:
room for young children I would like to buy a negative ion Air Cleaner of improving indoor air quality, may I ask you, this machine really effective to use do?
Answer:
Yes!
05-12-05
