Parcourir par tags

Tous les tags » Masque respiratoire » Secteurs d'activités » Équipement de protection individuel (RSS)
ASTM F2101 - Standard Test Method for Evaluating the Bacterial Filtration Efficiency (BFE) of Medical Face Mask Materials, Using a Biological Aerosol of Staphylococcus aureus
This test method is used to measure the bacterial filtration efficiency (BFE) of medical face mask materials, employing a ratio of the upstream bacterial challenge to downstream residual concentration to determine filtration efficiency of medical face mask materials. This test method is a quantitative method that allows filtration efficiency for medical face mask materials to be determined. The maximum filtration efficiency that can be determined by this method is 99.9 %. This test method does not apply to all forms or conditions of biological aerosol exposure. Users of the test method should...
A Pilot Study of Nanoparticle Levels and Field Evaluation of N95 Filtering Facepiece Respirators on Construction Sites
Little attention has been paid to the generated submicron ultrafine and nanoparticles and their exposure levels on construction jobsites. This information is needed because cytotoxicity of nanoparticles is well known now. In addition, the performance of particulate respirators generally used by construction workers has never been evaluated in field conditions against ultrafine and nano-sized particles. We hypothesized that workers on construction jobsites are exposed to high levels of nanoparticles and current NIOSH-recommended N95 respirators may not provide them adequate protection against aerosolized...
ASTM F2100 - 11(2018) - Standard Specification for Performance of Materials Used in Medical Face Masks
This specification covers the classifications, performance requirements, and test methods for the materials used in the construction of medical face masks that are used in health care services such as surgery and patient care. Medical face mask material performance is based on testing for bacterial filtration efficiency, differential pressure, sub-micron particulate filtration efficiency, resistance to penetration by synthetic blood, and flammability. This specification does not address all aspects of medical face mask design and performance, the effectiveness of medical face mask designs as related...
Comparison of two quantitative fit-test methods using N95 filtering facepiece respirators
Current regulations require annual fit testing before an employee can wear a respirator during work activities. The goal of this research is to determine whether respirator fit measured with two TSI Portacount instruments simultaneously sampling ambient particle concentrations inside and outside of the respirator facepiece is similar to fit measured during an ambient aerosol condensation nuclei counter quantitative fit test. Sixteen subjects (ten female; six male) were recruited for a range of facial sizes. Each subject donned an N95 filtering facepiece respirator, completed two fit tests in random...
Effectiveness of N95 respirators versus surgical masks in protecting health care workers from acute respiratory infection
A systematic review and meta-analysis Background: Conflicting recommendations exist related to which facial protection should be used by health care workers to prevent transmission of acute respiratory infections, including pandemic influenza. We performed a systematic review of both clinical and surrogate exposure data comparing N95 respirators and surgical masks for the prevention of transmissible acute respiratory infections. Methods: We searched various electronic databases and the grey literature for relevant studies published from January 1990 to December 2014. Randomized controlled trials...
Disinfection of personal protective equipment for management of Ebola patients
Bessesen et al highlight the potential utility of reusable elastomeric face masks to bypass the risk of N95 respirator shortages during a respiratory illness pandemic and stress the importance of efficacious disinfection to reuse facial protective equipment safely.1 We would like to take the opportunity to underline the need that awareness on personal protective equipment (PPE) stocks is included in any pandemic preparedness plan. The demand for PPE must be established on the basis of the health care facility's role, defined by public health authorities to create a coordinated network approach...
The Use and Effectiveness of Powered Air Purifying Respirators in Health Care
Workshop Summary Protecting 18 million United States health care workers from infectious agents—known and unknown—involves a range of occupational safety and health measures that include identifying and using appropriate protective equipment (CDC, 2014a). The 2009 H1N1 influenza pandemic and the 2014 Ebola virus outbreak in West Africa have called attention to the importance of personal protective equipment (PPE) in different health care settings and have raised questions about how best to ensure appropriate and effective use of different kinds of PPE (such as respirators), not only...

Abonnement courriel

Messages récents

Catégories

Mots-Clés (Tags)

Blogoliste

Archives