Manikin-Based Performance Evaluation of Elastomeric Respirators Against Combustion Particles
نویسندگان
چکیده
منابع مشابه
Manikin-based performance evaluation of N95 filtering-facepiece respirators challenged with nanoparticles.
Protection of the human respiratory system from exposure to nanoparticles is becoming an emerging issue in occupational hygiene. The potential adverse health effects associated with particles of approximately 1-100 nm are probably greater than submicron or micron-sized particles. The performance of two models of N95 half-facepiece-filtering respirators against nano-sized particles was evaluated...
متن کاملLaboratory evaluation of the particle size effect on the performance of an elastomeric half-mask respirator against ultrafine combustion particles.
OBJECTIVES This study quantified the particle size effect on the performance of elastomeric half-mask respirators, which are widely used by firefighters and first responders exposed to combustion aerosols. METHODS One type of elastomeric half-mask respirator equipped with two P-100 filters was donned on a breathing manikin while challenged with three combustion aerosols (originated by burning...
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This study compared the simulated workplace protection factors (SWPFs) between NIOSH-approved N95 respirators and P100 respirators, including two models of filtering facepiece respirator (FFR) and two models of elastomeric half-mask respirator (EHR), against sodium chloride particles (NaCl) in a range of 10 to 400 nm. Twenty-five human test subjects performed modified OSHA fit test exercises in...
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In this research zinc oxide particles prepared by solution combustion synthesis using zinc nitrate as oxidant and citric acid as fuel. The effect of citric acid to oxidant ratio (0.5, 1, 2 and 3) on phase formation, microstructure, optical properties and photocatalytic performance of the powders were studied using XRD, SEM and DRS techniques. Single phase ZnO particles by wurtzite structure was...
متن کاملPerformance of Facepiece Respirators and Masks against Surgical Smoke: SWPF Study
Healthcare workers in operating rooms are often exposed to surgical smoke when surgical and invasive procedures are performed by using laser or other devices that interact with tissue. Potentially infectious viruses, bacteria, and hazardous chemicals are found in surgical smoke, which are associated with several respiratory diseases including chronic cough, throat irritation, and asthma. Additi...
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ژورنال
عنوان ژورنال: Journal of Occupational and Environmental Hygiene
سال: 2013
ISSN: 1545-9624,1545-9632
DOI: 10.1080/15459624.2012.760063