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™). 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 m3 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 × 3.6 × 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.

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► Photocatalysis-plasma synergistic reactor was investigated for practical air-cleaner.
► A novel method for evaluation of the air-cleaner for separate smoking was proposed.
► The air-cleaner could remove the compounds in tobacco smoke in real-scale room.