As the National Institute for Occupational Safety and Health (NIOSH) Nanotechnology Research Center (NTRC) marks its 20th anniversary, we celebrate the creative work of the Engineering Controls and Personal Protective Equipment (PPE) critical topic area, one of the ten critical nanotechnology topic areas of the NTRC. NIOSH researchers have established both research publications and guidance to help reduce worker exposures to engineered nanoparticles and biological aerosol particles. One of the goals of research conducted in this critical topic area is to prevent work-related injury and illness by advancing the state of knowledge and application of PPE. PPE can include,
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