The Experts below are selected from a list of 702 Experts worldwide ranked by ideXlab platform
Mansour A Balkhyour - One of the best experts on this subject based on the ideXlab platform.
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evaluation of full facepiece Respirator fit on fire fighters in the municipality of jeddah saudi arabia
International Journal of Environmental Research and Public Health, 2013Co-Authors: Mansour A BalkhyourAbstract:The purpose of this study was to assess the effect of personal variables on the fit of the Respirators used by firefighters and workers in highly polluted environments. However, resistance from many plants managers was met to conduct the study on their workers. Therefore, we were forced to limit the study on firefighters who were found very cooperative. Forty volunteer firefighters from different departments participated in the study. They were subjected to a daily leak rate measurement using a Control Negative Pressure (CNP) fit tester for five consecutive days. Two types of Respirators were used for each volunteer: the Drager type and the MSA. At the end of the study, the association between face shape and presence of beard with the Respirator leak rates was investigated. A significant difference in the leak rate was detected between the two types of Respirators used, with the Drager Respirator having higher leak rates. The presence of a beard increased dramatically the leak rate whatever the face shape was. The oval shape was the best fitting to the Respirators, followed by the rounded and finally the rectangular face. The study recommends that personal variables like face shape must be taken into consideration and fit testing must be carried out periodically, to specify the Respirator that best fits each firefighter. Having beard must be absolutely prohibited, since it can be life threatening in environmental dangerous conditions such those encountered during extinguishing fires and overhaul situations.
Boza, Adriana Paula Orellana - One of the best experts on this subject based on the ideXlab platform.
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Avaliação da utilização de dois tipos de respiradores em atividades de um grupo homogêneo de exposição
2015Co-Authors: Boza, Adriana Paula OrellanaAbstract:Em uma indústria petroquímica do estado do Paraná – Brasil, são fornecidos dois tipos de respiradores para um grupo homogêneo de exposição (GHE) para a execução de suas atividades. Com o questionamento por parte dos funcionários sobre a necessidade de uso ou não de respirador e qual o mais adequado para os contaminantes presentes na área de trabalho deste GHE, este trabalho reuniu dados e informações sobre as características e especificações dos dois tipos de respiradores fornecidos por esta indústria, avaliou estatisticamente com a ferramenta UCL os dados de amostragens em área para gases e vapores de hidrocarbonetos de forma a determinar, com o auxílio da aplicação de um questionário de seleção de respiradores fornecido pela NIOSH e adaptado a realidade desta indústria e da legislação brasileira, o respirador mais adequado ao uso para este GHE. Como resultado este estudo demonstrou a necessidade de uso de respirador tipo facial completo.In a petrochemical industry in the state of Paraná - Brazil, there are provided two types of Respirators for a homogeneous group of exposure (GHE) for the performance of their activities. The employees have questioned about the need of using or not the Respirator and which one would be the most suitable for the current contaminants in this GHE workspace, this study gathered data and information on the features and specifications about the two types of Respirators provided by this industry, evaluated statistically using the UCL tool the data from sampling in area for gases and hydrocarbon vapors in order to determine, with the help of a Respirator selection questionnaire provided by NIOSH and adapted to this industry reality and the Brazilian legislation, the most suitable Respirator for use by this GHE. As result this study showed the need of use of a full facepiece Respirator
Alexxai V Kravitz - One of the best experts on this subject based on the ideXlab platform.
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modified full face snorkel mask as covid 19 personal protective equipment quantitative results
HardwareX, 2021Co-Authors: Kyle Nicholson, Ashley Henkeadams, Daniel M Henke, Alexxai V KravitzAbstract:The COVID-19 crisis has resulted in a shortage of personal protective equipment (PPE). Adapting commercially available full-faced snorkel masks has been proposed as an alternative to narrow the gap in PPE. An advantage of the full-faced snorkel mask design is that it serves two critical purposes: eye and face protection, and high quality air filtration to protect against SARS-CoV-2. We performed quantitative testing on various full-faced snorkel masks with 3D printed adapters that accept commercially available particulate filters, and report on a design that passed Occupational Safety and Health Administration (OSHA) Full-Facepiece Respirator standards.
Alghamri, Anas Ahmed - One of the best experts on this subject based on the ideXlab platform.
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The effects of personal protective Respirators on human motor, visual, and cognitive skills
Scholars\u27 Mine, 2012Co-Authors: Alghamri, Anas AhmedAbstract:In oxygen-deficient or toxic environments in which controlling the hazard is not feasible, workers wear personal protective Respirators. Hazard controls include but are not limited to engineering controls, such as ventilation, and substituting less hazardous materials. However, Respirator selection and the design of tasks that require Respirators are critical issues. Understanding the effects of Respirators on human abilities is critical to Respirator selection and therefore to the safety and efficiency of workers. This research investigated the effect of Respirators on human abilities. A review of the relevant literature was conducted, revealing that Respirators can affect physiological, psychological, motor, and visual abilities. However, the effect varies with different types of Respirators, environments and task types and difficulty levels. The details of this variance were identified and further investigated through experimentation. The study compared a dust Respirator, powered-air purifying Respirator and Full-Facepiece Respirator in terms of their effect on fine motor, visual and cognitive tasks. Thirty participants performed the Hand Tool Dexterity test, Motor-Free Visual Perception test (MVPT-3) and Serial Seven test. Each participant performed each task without a Respirator and then while wearing each type of Respirator. Task completion time and error rate were measured as indicators of performance. Participants also were surveyed regarding Respirator comfort, anxiety level, and perceived task difficulty. ANOVA, least significant difference, and least square means analyses showed that none of the Respirators significantly affected task completion time. A significant increase was found in the error rate when participants performed the cognitive test while wearing the Full-Facepiece Respirator --Abstract, page iv
Kyle Nicholson - One of the best experts on this subject based on the ideXlab platform.
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modified full face snorkel mask as covid 19 personal protective equipment quantitative results
HardwareX, 2021Co-Authors: Kyle Nicholson, Ashley Henkeadams, Daniel M Henke, Alexxai V KravitzAbstract:The COVID-19 crisis has resulted in a shortage of personal protective equipment (PPE). Adapting commercially available full-faced snorkel masks has been proposed as an alternative to narrow the gap in PPE. An advantage of the full-faced snorkel mask design is that it serves two critical purposes: eye and face protection, and high quality air filtration to protect against SARS-CoV-2. We performed quantitative testing on various full-faced snorkel masks with 3D printed adapters that accept commercially available particulate filters, and report on a design that passed Occupational Safety and Health Administration (OSHA) Full-Facepiece Respirator standards.
