Automated Breathing and Metabolic Simulator (ABMS) CO2 Test for Powered and Non-Powered Air-Purifying Respirators, Airline Respirators, and Gas Mask

Details

• Personal Author:
  Hota S ; Sinkule E ; Turner N
• Description:
  There is currently no NIOSH certification test for CO2 concentrations in air-purifying respirators. The Automated Breathing and Metabolic Simulator (ABMS), which simulates human metabolism, minute ventilation, and breathing waveforms, was used to characterize average inhaled CO2 in a variety of NIOSH-approved air-purifying respirators. An ABMS CO2 test protocol was developed to test 11 powered air-purifying respirators (PAPRs), 20 airline respirators (SARs), six gas masks, 27 P-I00 air-purifying respirators (APRs), and 26 filtering-facepiece N95 respirators (N95s). The ABMS CO2 protocol consisted of the following levels of O2 consumption, CO2 production, and minute ventilation performed consecutively for a minimum of five minutes each: 0.5, 0.4, and 10 L/min STPD; 1.0, 0.8, and 25 L/min STPD; 1.5, 1.3, and 38 L/min STPD; 2.0, 1.9, and 62 L/min STPD; 2.5, 2.5, and 70 L/min STPD; and 3.0, 3.1, and 80 L/min STPD, respectively. The mean across all PAPR models for average inhaled CO2 and O2 ranged from 0.2% and 20.7%, respectively, for the lowest metabolic rate to 0.9% and 20.0%, respectively, for the greatest metabolic rate. The mean across all SARs for average inhaled CO2 and O2 ranged from 0.5% and 20.3%, respectively, for the lowest metabolic rate to 0.4% and 20.5%, respectively, for the greatest metabolic rate. The mean across all gas masks and APRs for average inhaled CO2 and O2 ranged from 2.6% and 17.5%, respectively, for the lowest metabolic rate to 0.7% and 20.4%, respectively, for the greatest metabolic rate. The mean across all N95s for average inhaled CO2 and O2 ranged from 3.5% and 16.8%, respectively, for the lowest metabolic rate to 2.7% and 18.6%, respectively, for the greatest metabolic rate. These data demonstrate the wide range of average inhaled CO2 concentrations across respirator types and the utility of the ABMS in conducting CO2 testing. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Energy Metabolism Occupational Health Personal Protective Equipment Respiratory Protective Devices Respiratory System Safety
• Keywords:
  Air-purifiers Air-purifying-respirators Breathing Breathing-atmospheres Metabolism Respirators Respiratory-protective-equipment
• Series:
  Mining Publications
• Publisher:
  American Industrial Hygiene Association
• Document Type:
  Text
• Genre:
  Abstract or Summary
• Place as Subject:
  OSHA Region 10 ; OSHA Region 3 ; OSHA Region 6 ; Pennsylvania ; Texas ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SRL - Spokane Research Laboratory ; NPPTL - National Personal Protective Technology Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  54
• NIOSHTIC Number:
  nn:20022781
• Citation:
  American Industrial Hygiene Conference and Exposition, May 10-15, 2003, Dallas, Texas. Fairfax, VA: American Industrial Hygiene Association, 2003 May; :54
• CAS Registry Number:
  Carbon dioxide (CAS RN 124-38-9) ; Oxygen (CAS RN 7782-44-7)
• Federal Fiscal Year:
  2003
• Peer Reviewed:
  False
• Source Full Name:
  American Industrial Hygiene Conference and Exposition, May 10-15, 2003, Dallas, Texas
• End Date:
  20100930
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:571e9f67d2abc649bfe98e02e70cd8f92fdea435aac5ec49529d874c829659074e587b9cf210e80f9afaae1912288a138a1e69d6d7f7f09fe92bb43b80a1070f
• Download URL:
  https://stacks.cdc.gov/view/cdc/220585/cdc_220585_DS1.pdf
• File Type:
  [PDF - 598.88 KB ]