Title: EVALUATION ON THE FILTRATION EFFICIENCY OF THE MASK FILTRATION MATERIALS AGAINST NON-BIOLOGICAL PARTICLES AND MICROBIAL AEROSOL
Abstract: Objective To evaluate the filtration efficiency of different types of mask filtration materials against non-biological particles aerosol and microbial aerosol.Methods The filtration efficiency of surgical mask and medical protection mask materials against different aerosols was determined by using artificial aerosol and sampling by the instruments.Results The filtration efficiency of treated(38℃ and 85% RH) surgical mask materials against NaCl aerosol was 41.46% and that of the untreated one was 41.14%.There was no difference between the two materials(P0.05).The filtration efficiency of medical protection mask material against NaCl aerosol was 99.45%.The filtration efficiency of the surgical mask material against Staphylococcus aureus aerosol was 94.78% and that of the medical protection mask material was 99.73%.Conclusions The filtration efficiency of the surgical mask material against non-biological aerosol was below 50%,while that of the medical protection mask material against both non-biological and microbial aerosol was over 99%.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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