An effective method for a separation of smoking area by using novel photocatalysis-plasma synergistic air-cleaner

The novel air-cleaner with photocatalysis-plasma synergistic reactor was developed as an effective method for the separation of smoking area. The reactor consists of two essential technologies: plasma assisted catalytic technology (PACT) reactor and a TiO2 impregnated Ti-mesh filter (TMiP (TM)). The air-cleaners were tested by the tobacco smoke deodorization tests according to both the standard test method for air cleaner and the proposed test method. In the standard test method, 80-100% decrease of the concentrations of gaseous compounds in tobacco smoke in 1 m(3) box has been achieved for 30 min by the air-cleaner. It seems that present system which realize a better contact among the TMiP surface, the gas phase, and high-energy and reactive species generated by PACT is effective to have the benefit of plasma enhanced photocatalysis. On the other hand, more practical test method in the real-scale smoking room (2.7 x 3.6 x 2.5 m) includes the analysis of a trace amount of gaseous compounds the evaluation by using a one-pass system from smoking room to non-smoking room was proposed. Almost of the compounds could be decomposed and/or removed by the practical air-cleaner with one-pass condition. The proposed test method would lead to establish the suitable method for the separation of smoking room. (C) 2012 Elsevier B.V. All rights reserved.