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Penetration of Nanoparticles through NIOSH-Approved Respirator Filters- FY08


  • To evaluate the efficacy of NIOSH-approved respirators against nanoparticles
Lab testing of Filtering Face piece Respirator (F F R)

Applicable Standards

  • 42 CFR
  • ASTM E56
  • ISO TC 229

Key Partners

  • Minn. University - Nanoparticle penetration
  • NIOSH NTRC - Funding
  • DuPont Nanotech Consortium - Exchange of information


  • Respirator users
  • Industrial hygienists
  • Respirator manufacturers
  • Filter media manufacturers
  • Nanotechnology companies
  • Funded in part by NIOSH NTRC
Document cover

Project Scope

  • Using flat plate system measure performance of filtering
  • Facepiece respirators against nanoparticles
  • Using manikin head form measure face seal leakage and filter
  • Performance of respirators against nanoparticles
  • Determine most penetrating particle size for N95, P100, and FFP2 filters


  • A manikin head form will be set up for particle leakage studies
  • Particle penetration and leakage will be measured using monodisperse particles in the range of 10-400nm at different size leaks. Results will be compared with PortaCountPlus measurements


  • Manuscripts published or submitted to peer review journals (approx. 2)
  • Presentations to stakeholders or conferences (approx. 7)
  • Standards committee meetings & public meetings (approx. 1)
  • NIOSH Best Practice Nanotech Guidance Documents


  • Experimental data from project is used in NIOSH, ASTM, & ISO guidelines for worker protection against aerosolized nanoparticles
  • DuPont uses NIOSH recommended test procedures for collecting data on barrier materials and filter media
Page last updated: August 08, 2008
Page last reviewed: August 08, 2008
Content Source: National Institute for Occupational Safety and Health (NIOSH)