Evaluation of characterization and filtration performance of air cleaner materials

The following common filter materials were characterized and evaluated for filtration performance: glass fiber (GF), polytetrafluoroethylene (PTFE), and polypropylene (PP). The pressure drop of GF and PFFE was found to be approximately 500–600 Pa at 0.10 m/s face velocity, and the pressure drop for...

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Bibliographic Details
Published in:	International journal of environmental science and technology (Tehran) 2021-08, Vol.18 (8), p.2209-2220
Main Authors:	Zhou, Z.-J., Zhou, B., Tseng, C.-H., Hu, S.-C., Shiue, A., Leggett, G.
Format:	Article
Language:	eng
Subjects:	Aquatic Pollution Earth and Environmental Science Ecotoxicology Environment Environmental Chemistry Environmental Science and Engineering Original Paper Soil Science & Conservation Waste Water Technology Water Management Water Pollution Control
Online Access:	Get full text
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Summary:	The following common filter materials were characterized and evaluated for filtration performance: glass fiber (GF), polytetrafluoroethylene (PTFE), and polypropylene (PP). The pressure drop of GF and PFFE was found to be approximately 500–600 Pa at 0.10 m/s face velocity, and the pressure drop for the PP is lower at only 30–80 Pa. The filtration efficiency of PTFE and GF was determined as 99.067% and 98.234%. Results show the filtration efficiency of PP is between 95.836–98.732%, but the filtration efficiency of PP filter materials will decrease 20–60% after electrostatic removal. The contribution of various particle collection mechanisms to the overall efficiency of the filter was calculated using the single-fiber filtration efficiency model. The diffusion of the aerosol particles at submicron size was the main collection mechanism, and the contribution of the gravity sedimentation mechanism to the measured particle size range was very low or even negligible.
ISSN:	1735-1472 1735-2630