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1	Respiratory protection against airborne nanoparticles: a review
Authors	Shaffer-RE; Rengasamy-S
Source	J Nanoparticle Res 2009 Oct; 11(7):1661-1672
Link	http://dx.doi.org/10.1007/s11051-009-9649-3
NIOSHTIC No.	20035961
Abstract	As a precautionary measure, it is often recommended that workers take steps to reduce their exposure to airborne nanoparticles through the use of respiratory protective devices. The purpose of this study was to provide a review and analysis of the research literature and current recommendations on respirators used for protection against nanoparticles. Key research findings were that studies with particles as small as 4 nm have shown that conventional single-fiber filtration theory can be used to describe the filtration performance of respirators and that the most penetrating particle size for respirators equipped with commonly used electrostatic filter media is in the range of 30-100 nm. Future research needs include human laboratory and workplace protection factor studies to measure the respirator total inward leakage of nanoparticles. Industrial hygienists and safety professionals should continue to use traditional respirator selection guidance for workers exposed to nanoparticles.
Keywords	Airborne-particles; Analytical-processes; Equipment-reliability; Exposure-assessment; Exposure-levels; Exposure-methods; Fibrous-dusts; Lung-irritants; Occupational-exposure; Particle-aerodynamics; Particulate-dust; Particulates; Personal-protection; Personal-protective-equipment; Protective-equipment; Protective-measures; Pulmonary-system; Respiratory-equipment; Respiratory-hypersensitivity; Respiratory-irritants; Respiratory-protective-equipment; Risk-analysis; Safety-education; Safety-equipment; Safety-measures; Safety-practices; Work-environment; Worker-motivation; Workplace-monitoring; Workplace-studies; Work-practices; Author Keywords: Respirator; Respiratory protection; Filtration; Nanoparticle; EHS; Occupational safety and health; Aerosols
Contact	Ronald E. Shaffer, National Personal Protective Technology Laboratory, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 626 Cochrans Mill Road, Building 29, P.O. Box 18070, Pittsburgh, PA 15236
CODEN	JNARFA
Publication Date	20091001
Document Type	Journal Article
Email Address	RShaffer@cdc.gov
Fiscal Year	2010
NTIS Accession No.
NTIS Price
Issue of Publication	7
ISSN	1388-0764
NIOSH Division	NPPTL
Source Name	Journal of Nanoparticle Research
State	PA

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