Respiratory precautions for protection from bioaerosols or infectious agents : a review of the clinical effectiveness and guidelines

Air-purifying respirators are further classified by the efficiency at which they remove particles (95%, 99%, and 100%), and into N-Series respirators that are not resistant to oil (N95, N99, N100), R-Series that are resistant to oil (R95, R99, R100), and P-Series that are oil-proof (P95, P99, P100)....

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Corporate Author: Canadian Agency for Drugs and Technologies in Health
Format: eBook
Language:English
Published: [Ottawa, Ont.] Canadian Agency for Drugs and Technologies in Health 2014, 19 August 2014
Series:Rapid response report: summary with critical appraisal
Subjects:
Online Access:
Collection: National Center for Biotechnology Information - Collection details see MPG.ReNa
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245 0 0 |a Respiratory precautions for protection from bioaerosols or infectious agents  |h Elektronische Ressource  |b a review of the clinical effectiveness and guidelines 
260 |a [Ottawa, Ont.]  |b Canadian Agency for Drugs and Technologies in Health  |c 2014, 19 August 2014 
300 |a 1 PDF file (30 pages)  |b illustrations 
505 0 |a Includes bibliographical references 
653 |a Comparative Effectiveness Research 
653 |a Respiratory Protective Devices / standards 
653 |a Masks / standards 
653 |a Disease Transmission, Infectious / prevention & control 
653 |a Practice Guidelines as Topic 
653 |a Particulate Matter / adverse effects 
710 2 |a Canadian Agency for Drugs and Technologies in Health 
041 0 7 |a eng  |2 ISO 639-2 
989 |b NCBI  |a National Center for Biotechnology Information 
490 0 |a Rapid response report: summary with critical appraisal 
500 |a Title from PDF caption title. - "CADTH Rapid Response Service." 
856 |u https://www.ncbi.nlm.nih.gov/books/NBK253856  |3 Volltext 
082 0 |a 700 
082 0 |a 610 
520 |a Air-purifying respirators are further classified by the efficiency at which they remove particles (95%, 99%, and 100%), and into N-Series respirators that are not resistant to oil (N95, N99, N100), R-Series that are resistant to oil (R95, R99, R100), and P-Series that are oil-proof (P95, P99, P100). As the Canadian Biosafety Standards and Guidelines note: "Using the wrong respirator or misusing one can be as dangerous as not using one at all". Given the variety of devices, respirators, and potential infectious exposures, the purpose of this report is to identify studies and clinical practice guidelines examining the clinical effectiveness of exposure-appropriate respiratory protection for HCWs at risk of exposure to airborne infectious agents 
520 |a For this report, medical masks (also known as surgical masks or surgical face masks) are defined as unfitted devices worn by the healthcare worker (HCW) "to reduce transfer of potentially infectious bodily fluids between individuals". Masks are designed prevent droplets from an infectious patient from coming in contact with the mucous membranes in the nose and mouth of the person wearing the mask. It must be noted that masks are not designed to filter small airborne infectious particles. In contrast, respirators are "medical devices designed to protect the wearer from airborne infectious aerosols transmitted directly from the patient or when artificially created such as during aerosol-generating procedures", and this is done by filtering the airborne particles (known as an air-purifying respirator) or supplying clean air to the person wearing the respirator (known as an atmosphere-supplying respirator).  
520 |a There are a number of infectious diseases that are transmitted from person to person via the respiratory route, including influenza, tuberculosis (TB), and severe acute respiratory syndrome (SARS) coronavirus, and these infectious agents are associated with considerable morbidity and mortality. Healthcare workers (HCWs) are vulnerable to exposure to these agents given the nature of their jobs, and as a result, risk both becoming infected, and spreading the infectious agents to other patients. To avoid transmission of these infectious diseases to (HCWs), exposure-appropriate respiratory precautions are sometimes necessary to protect both HCWs and the patients they care for. However, the selection of respiratory equipment depends on the pathogen, aerosol generation rate, and ventilation rate. Two types of devices that are commonly used to prevent transmission of airborne infectious agents are medical masks and respirators.