Dust masks for Indian quarry workers: A comparative analysis of the filtering efficiency of fabrics
The filtration properties of Indian fabrics were measured using modified respiratoryÂ protective device (RPD) tests, to match conditions in Indian quarries. Results were compared toÂ those of dust masks meeting Australian and International standards. Four layers of loose weaveÂ fabrics were found to perform best, but would still be insufficient for use at sites with highlyÂ hazardous dusts.
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