It took 60 minntues for Cleaning. When initial concentration was(5 mg/m~3),the wipe-off rates of sample A,B,C were 99.96%,89.53%,89.20%,respectively.

• 在净化60分钟后；香烟烟雾初始浓度为5 mg/m3时；试样A、B和C的去除率分别为99.；96%25、89