About: Filtration performances of non-medical materials as candidates for manufacturing facemasks and respirators

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About: Filtration performances of non-medical materials as candidates for manufacturing facemasks and respirators 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	Filtration performances of non-medical materials as candidates for manufacturing facemasks and respirators
Creator	Wang, Yang Li, Jiayu Burken, Joel Hao, Weixing Ma, Hongyan Parasch, Andrew Williams, Stephen
Source	Elsevier; PMC
abstract	The recent outbreak of the coronavirus disease (COVID-19) is causing a shortage of personal protective equipment (PPE) in different countries around the world. Because the coronavirus can transmit through droplets and aerosols, facemasks and N95 respirators that require complex certification, are urgently needed. Given the situation, the U.S. Centers for Disease Control and Prevention (CDC) recommends that “in settings where facemasks are not available, healthcare personnel might use homemade masks (e.g., bandana, scarf) for the care of patients with COVID-19 as a last resort.” Although aerosols and droplets can be removed through the fibers of fabrics through a series of filtration mechanisms, their filtration performances have not been evaluated in detail. Moreover, there are a series of non-medical materials available on the market, such as household air filters, coffee filters, and different types of fabrics, which may be useful when facemasks and respirators are not available. In this study, we comprehensively evaluated the overall and size-dependent filtration performances of non-medical materials. The experiments were conducted under different face velocities to study its influence on size-dependent filtration performances. The flow resistance across these filter materials is measured as an indicator of the breathability of the materials. The results illustrate that multiple layers of household air filters are able to achieve similar filtration efficiencies compared to the N95 material without causing a significant increase in flow resistance. Considering that these air filters may shed micrometer fibers during the cutting and folding processes, it is recommended that these filters should be inserted in multiple layers of fabrics when manufacturing facemasks or respirators.
has issue date	2020-07-21(xsd:dateTime)
bibo:doi	10.1016/j.ijheh.2020.113582
has license	no-cc
sha1sum (hex)	44346ee6a8dc71d2d78915a44b407ef7cee177a9
schema:url	https://doi.org/10.1016/j.ijheh.2020.113582
resource representing a document's title	Filtration performances of non-medical materials as candidates for manufacturing facemasks and respirators
has PubMed Central identifier	PMC7373391
schema:publication	Int J Hyg Environ Health
resource representing a document's body	covid:44346ee6a8dc71d2d78915a44b407ef7cee177a9#body_text
is schema:about of	named entity 'layers' named entity 'disease' named entity 'fibers' named entity 'care' named entity 'flow resistance' named entity 'manufacturing' named entity 'aerosols' named entity 'respirators' named entity 'U.S.' named entity 'Given' named entity 'Although' named entity 'influence' named entity 'evaluated' named entity 'cutting' named entity 'homemade masks' named entity 'personal protective equipment (PPE' named entity 'filtration' named entity 'filtration' named entity 'filtration' named entity 'coronavirus' named entity 'bandana' named entity 'healthcare personnel' named entity 'N95' named entity 'Centers for Disease Control and Prevention' named entity 'outbreak' named entity 'Vacuum bag' named entity 'difficulty in breathing' named entity 'air filters' named entity 'health risks' named entity 'aerosols' named entity 'aerosols' named entity 'aerosols' named entity 'air filter' named entity 'aerosols' named entity 'aerosols' named entity 'activated carbon' named entity 'Air' named entity 'air filters' named entity 'KN95' named entity 'N95' named entity 'high-efficiency particulate air' named entity 'performance rating' named entity 'kPa' named entity 'pressure drop' named entity 'kPa' named entity 'air filter' named entity 'respiratory diseases' named entity 'air filter' named entity 'Brownian' named entity 'virus' named entity 'aerosols' named entity 'differential mobility analyzer' named entity '3D-printed' named entity 'air filter' named entity 'aerosol' named entity 'air filters' named entity 'performance rating' named entity '3D-printed' named entity 'residence time' named entity 'air filter' named entity 'filter material' named entity 'porous media' named entity 'PPE' named entity 'aerosols' named entity 'WHO' named entity '2.0' named entity 'face velocity' named entity 'bacteria' named entity 'N95' named entity 'OSHA' named entity 'N95' named entity 'virus' named entity 'fluid flow' named entity 'aerosols' named entity 'National Institute for Occupational Safety and Health' named entity 'air filters' named entity 'air filters'

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