Particle and Aerosol Research
Vol. 12, No. 3, September 2016, Pages 95-102
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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Fractional efficiency of Nanomaterials for the High efficiency respiratory filters
Gwang-Jae Lee1), Jun-Ho Ji1)*, Won-Geun Kim2), Se-Jin Yook2), Jong-Kyo Kim3), and Jung-Ho Kim4)
1)EcoPictures Co. Ltd., Seoul Korea
2)Hanyang University, Seoul, Korea
3)KOSHA, Ulsan, Korea
4)Ministry of Employment and Labor, Sejong, Korea
*Corresponding author.
Tel.: +82-2-6959-5899, E-mail: caputjun@gmail.com
Received 25 August 2016, Revised 09 September 2016, Accepted 30 September 2016, Available online 06 October 2016
http://dx.doi.org/10.11629/jpaar.2016.9.30.095
Abstracts
Controlling exposures to occupational hazards is important for protecting workers. Certified facepiece respirators are recommended when engineering controls do not adequately prevent exposures to airborne nanomaterials. The objective of this study is to carry out the experimental performance test to investigate the fractional efficiencies of the filter media for two grades of facepiece respirators. Experimental performance evaluations were carried out for the test NaCl particles and silver nanoparticles. For media of respirator filter, the penetration of NaCl particles was less than 5% and the most penetrating particle size occurred at about 40 nm. For silver nanoparticles, the most penetrating particle size was about 20nm with higher efficiency than those of NaCl particles. Charge characteristics of airborne nanoparticles is important because the media of respirator filter is made by the electret filter media.
Keywords
facepiece respirators, fractional efficiency, silver nanoparticles, electret filter, filter media
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