Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Pilot study of aromatic hydrocarbon adsorption characteristics of disposable filtering facepiece respirators that contain activated carbon.

Authors
Rozzi-T; Snyder-J; Novak-D
Source
J Occup Environ Hyg 2012 Nov; 9(11):624-629
NIOSHTIC No.
20041518
Abstract
Disposable filtering facepiece respirators (FFRs) used by health care workers are not designed to reduce the inhalation of volatile organic compounds (VOCs). Smoke-generating surgical procedures release VOCs and have been associated with the following complaints: foul smell, headaches, nausea, irritated throat and lungs, and asthma. Organic vapor FFRs that contain activated carbon are used by industrial workers to provide odor relief. These respirators remove irritating odors but are not marketed as respirators that provide respiratory protection against a gas or vapor. This study investigated the aromatic hydrocarbon adsorption capabilities of nuisance organic vapor (OV) FFRs. Three OV FFR models were tested to determine the 10% breakthrough time of three aromatic hydrocarbons at ambient room temperature and relative humidity. All respirator models were exposed to each vapor separately in three duplicate tests (n = 27). The respirator was sealed with silicone to an AVON-ISI headform that was placed in a chamber and exposed to VOC-laden air (20 ppm, 37 L/min). Periodically, gas samples were directed to an SRI gas chromatograph (Model 8610C) for analysis. All respirators performed similarly. The average 10% breakthrough values for all tests were at least 64 min, 96 min, and 110 min for benzene, toluene, and xylene, respectively. Respirators were tested with challenge concentrations at nuisance levels (20 ppm) and did not exceed 10% breakthrough values for at least 61 min. While the results of this pilot study hold promise, there is a need for further investigation and validation to determine the effectiveness of nuisance FFRs in mitigating organic vapors such as benzene, toluene, and xylene.
Keywords
Respirators; Respiratory-equipment; Respiratory-protective-equipment; Air-purifying-respirators; Face-masks; Health-care; Health-care-personnel; Medical-personnel; Surgeons; Surgery; Volatiles; Organic-compounds; Aromatic-hydrocarbons; Organic-vapors; Odor-control; Odors; Personal-protective-equipment; Author Keywords: organic vapors; personal protective equipment; respirator; surgical smoke
Contact
Jay Snyder, National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, 626 Cochrans Mill Rd., Pittsburgh, PA 15236, USA
CODEN
JOEHA2
Publication Date
20121101
Document Type
Journal Article
Fiscal Year
2013
NTIS Accession No.
NTIS Price
Identifying No.
B09262012
Issue of Publication
11
ISSN
1545-9624
NIOSH Division
NPPTL
Priority Area
Healthcare and Social Assistance
Source Name
Journal of Occupational and Environmental Hygiene
State
PA
TOP