About: Design and Evaluation of a Portable Negative Pressure Hood with HEPA Filtration to Protect Health Care Workers Treating Patients with Transmissible Respiratory Infections

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About: Design and Evaluation of a Portable Negative Pressure Hood with HEPA Filtration to Protect Health Care Workers Treating Patients with Transmissible Respiratory Infections Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Design and Evaluation of a Portable Negative Pressure Hood with HEPA Filtration to Protect Health Care Workers Treating Patients with Transmissible Respiratory Infections
Creator	Hume, Janet Abraham, Asish Andrews, Austin Belani, Kumar Chaika, Jonathan Fischer, Gwenyth Floersch, Eugene Hogan, Christopher Konia, Mojca Marabella, Ian Mimmack, Reid Olson, Bernard Park, Yensil Phu, Hai-Thien
Source	Elsevier; Medline; PMC
abstract	BACKGROUND: To mitigate potential exposure of healthcare workers (HCWs) to SARS-CoV-2 via aerosol routes, we have developed a portable hood which not only creates a barrier between HCW and patient, but also utilizes negative pressure with filtration of aerosols by a HEPA filter. MATERIAL AND METHODS: The hood has iris-port openings for access to the patient, and an opening large enough for a patient's head and upper torso. The top of the hood is a HEPA filter connected to a blower to apply negative pressure. We determined the aerosol penetration from outside to inside in laboratory experiments. RESULTS: The penetration of particles from within the hood to the breathing zones of HCWs outside the hood was near 10(-4) (0.01%) in the 200-400 nm size range, and near 10(-3) (0.1%) for smaller particles. Penetration values for particles in the 500 nm – 5 μm range were below 10(-2) (1%). Fluorometric analysis of deposited fluorescein particles on the personal protective equipment of a HCW revealed that negative pressure reduces particle deposition both outside and inside the hood. CONCLUSIONS: We find that negative pressure hoods can be effective controls to mitigate aerosol exposure to HCWs, while simultaneously allowing access to patients.
has issue date	2020-06-27(xsd:dateTime)
bibo:doi	10.1016/j.ajic.2020.06.203
bibo:pmid	32603849
has license	no-cc
sha1sum (hex)	f6e78717a3fff5960c6d93b06cd54afaae4f438a
schema:url	https://doi.org/10.1016/j.ajic.2020.06.203
resource representing a document's title	Design and Evaluation of a Portable Negative Pressure Hood with HEPA Filtration to Protect Health Care Workers Treating Patients with Transmissible Respiratory Infections
has PubMed Central identifier	PMC7320700
has PubMed identifier	32603849
schema:publication	Am J Infect Control
resource representing a document's body	covid:f6e78717a3fff5960c6d93b06cd54afaae4f438a#body_text
is schema:about of	named entity 'AEROSOL EXPOSURE' named entity 'ALLOWING' named entity 'Health Care Workers' named entity 'Negative Pressure' named entity 'background subtraction' named entity 'intensive care' named entity 'exhaled breath' named entity 'respirator' named entity 'respiratory diseases' named entity 'Aerosol' named entity 'healthcare workers' named entity 'Extubation' named entity 'NIV' named entity 'logarithmic scale' named entity 'safety glasses' named entity 'COVID-19 pandemic' named entity 'aerosol' named entity 'HCW' named entity 'global pandemic' named entity 'volumetric flow' named entity 'Kalamazoo, MI' named entity 'cough' named entity 'aerosolized' named entity 'upper torso' named entity 'Fluorometric' named entity 'battery powered' named entity 'Stavanger' named entity 'negative pressure' named entity 'aerosol' named entity 'Aerosol' named entity 'HCW' named entity 'aerosol particles' named entity 'Fluorescein' named entity 'Aerosol' named entity 'mass concentrations' named entity 'Laerdal Medical' named entity 'negative pressure' named entity 'HEPA filtration' named entity 'engineering control' named entity 'differential mobility analyzer' named entity 'dBA' named entity 'fluorescein' named entity 'aqueous solution' named entity 'mechanical ventilation' named entity 'virus' named entity 'aerosol' named entity 'respiratory care' named entity 'aerosol particles' named entity 'coagulation' named entity 'aerosols' named entity 'Aerosol' named entity 'Conscious sedation' named entity 'HEPA' named entity 'paramedics' named entity 'micrometer' named entity 'Aerosol' named entity 'particulate' named entity 'patient care' named entity 'COVID-19 infection' named entity 'MAC' named entity 'organism' named entity 'aerosol' named entity 'ventilator' named entity 'coronavirus' named entity 'aerosol particles' named entity 'nebulizing' named entity 'aerosol' named entity 'PPE'

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