| Document ID (ISN) | 75894 |
| CIS number |
00-1675 |
| ISSN - Serial title |
0007-9952 - Cahiers de notes documentaires - Hygiène et sécurité du travail |
| Year |
2000 |
| Convention or series no. |
|
| Author(s) |
Poirot P., Grzebyk M., Héry M., Possoz C., Subra I. |
| Title |
Effectiveness of negative-pressure gas respirators in an industrial setting conditions |
| Original title |
Efficacité de masques anti-gaz à ventilation libre en situation industrielle [in French] |
| Bibliographic information |
1st Quarter 2000, No.178, Note No.2123-178-00, p.43-52. Illus. 21 ref. |
| Abstract |
Thirty volunteers in six companies took part in a survey to measure the performance of negative-pressure gas respirators with no powered ventilation. Two full-face masks and five half-masks were tested. Each mask was fitted with a filter adapted to the solvent to which operatives were exposed. A new filter was used for each test. The efficiency of the masks was gauged by taking simultaneous readings of pollutant gas levels inside the masks (actual exposure) and outside the masks (potential exposure). The pollutant gases were generated by solvent mixtures. The study produced the following findings: only one mask was shown to be inefficient; there was little or no difference in the performances of the other six; mask leakage in actual working conditions is about 10%; leakage is higher than levels usually found in the literature (between 2% and 4%). The variability of results excludes prediction of the effectiveness of negative-pressure gas respirators in industrial settings. |
| Descriptors (primary) |
gas removing respirators; equipment testing; reliability |
| Descriptors (secondary) |
filtration efficiency; evaluation of equipment; respirators; solvents; exposure evaluation; negative pressure |
| Document type |
D - Periodical articles |
| Country / State or Province | France |
| Subject(s) |
Personal protection
|
| Broad subject area(s) |
Chemical safety
|
| Browse category(ies) |
Respiratory protection
|
