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Open AccessArticle

Field Performance Test of an Air-Cleaner with Photocatalysis-Plasma Synergistic Reactors for Practical and Long-Term Use

1
Kanagawa Academy of Science and Technology, KSP East 407, 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa 213-0012, Japan
2
Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
3
PACT World Co. Ltd., Domicile 301, 1-3-1 Sugeinadazutsumi, Tama-ku, Kawasaki, Kanagawa 214-0003, Japan
4
Tanashin Denki Co. Ltd., 8-19-20 Fukasawa, Setagaya-ku, Tokyo 158-0081, Japan
5
VIX Corporation, 2-14-8 Midorigaoka, Meguro-ku, Tokyo 152-0034, Japan
*
Author to whom correspondence should be addressed.
Molecules 2014, 19(11), 17424-17434; https://doi.org/10.3390/molecules191117424
Received: 30 August 2014 / Revised: 6 October 2014 / Accepted: 22 October 2014 / Published: 29 October 2014
(This article belongs to the Special Issue Photocatalysis)
A practical and long-term usable air-cleaner based on the synergy of photocatalysis and plasma treatments has been developed. A field test of the air-cleaner was carried out in an office smoking room. The results were compared to previously reported laboratory test results. Even after a treatment of 12,000 cigarettes-worth of tobacco smoke, the air-cleaner maintained high-level air-purification activity (98.9% ± 0.1% and 88% ± 1% removal of the total suspended particulate (TSP) and total volatile organic compound (TVOC) concentrations, respectively) at single-pass conditions. Although the removal ratio of TSP concentrations was 98.6% ± 0.2%, the ratio of TVOC concentrations was 43.8% after a treatment of 21,900 cigarettes-worth of tobacco smoke in the field test. These results indicate the importance of suitable maintenance of the reactors in the air-cleaner during field use. View Full-Text
Keywords: photocatalysis; plasma treatment; synergy; air-cleaner; field test; total suspended particulates; total volatile organic compounds; long-term usability photocatalysis; plasma treatment; synergy; air-cleaner; field test; total suspended particulates; total volatile organic compounds; long-term usability
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MDPI and ACS Style

Ochiai, T.; Ichihashi, E.; Nishida, N.; Machida, T.; Uchida, Y.; Hayashi, Y.; Morito, Y.; Fujishima, A. Field Performance Test of an Air-Cleaner with Photocatalysis-Plasma Synergistic Reactors for Practical and Long-Term Use. Molecules 2014, 19, 17424-17434.

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