Improving Filtration Efficacy of Medical Face Masks
Abstract We built a simple unipolar positive corona charger and tested it with five different medical face masks. Charging the particles significantly enhanced the filtration efficiencies of all of the masks in terms of the submicron fraction, with an average increase of from 58 to 93% for 0.3 µm pa...
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| Format: | Article |
| Language: | English |
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Springer
2021-03-01
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| Series: | Aerosol and Air Quality Research |
| Subjects: | |
| Online Access: | https://doi.org/10.4209/aaqr.210043 |
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| _version_ | 1825197535851970560 |
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| author | Ilpo Kulmala Kimmo Heinonen Satu Salo |
| author_facet | Ilpo Kulmala Kimmo Heinonen Satu Salo |
| author_sort | Ilpo Kulmala |
| collection | DOAJ |
| description | Abstract We built a simple unipolar positive corona charger and tested it with five different medical face masks. Charging the particles significantly enhanced the filtration efficiencies of all of the masks in terms of the submicron fraction, with an average increase of from 58 to 93% for 0.3 µm particles. Simultaneously, the pressure drop remained practically the same, showing the high potential in using electret media. However, the corona discharge generated ozone, which is an issue that must be addressed. These results contribute to the development of effective solutions against airborne threats. |
| format | Article |
| id | doaj-art-c35e464974c846ea9650444ce4fbcf5f |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-c35e464974c846ea9650444ce4fbcf5f2025-02-09T12:19:41ZengSpringerAerosol and Air Quality Research1680-85842071-14092021-03-012161710.4209/aaqr.210043Improving Filtration Efficacy of Medical Face MasksIlpo Kulmala0Kimmo Heinonen1Satu Salo2Technical Research Centre of Finland VTT Ltd.Technical Research Centre of Finland VTT Ltd.Technical Research Centre of Finland VTT Ltd.Abstract We built a simple unipolar positive corona charger and tested it with five different medical face masks. Charging the particles significantly enhanced the filtration efficiencies of all of the masks in terms of the submicron fraction, with an average increase of from 58 to 93% for 0.3 µm particles. Simultaneously, the pressure drop remained practically the same, showing the high potential in using electret media. However, the corona discharge generated ozone, which is an issue that must be addressed. These results contribute to the development of effective solutions against airborne threats.https://doi.org/10.4209/aaqr.210043Medical face maskFiltration efficiencyChargingBioaerosols |
| spellingShingle | Ilpo Kulmala Kimmo Heinonen Satu Salo Improving Filtration Efficacy of Medical Face Masks Aerosol and Air Quality Research Medical face mask Filtration efficiency Charging Bioaerosols |
| title | Improving Filtration Efficacy of Medical Face Masks |
| title_full | Improving Filtration Efficacy of Medical Face Masks |
| title_fullStr | Improving Filtration Efficacy of Medical Face Masks |
| title_full_unstemmed | Improving Filtration Efficacy of Medical Face Masks |
| title_short | Improving Filtration Efficacy of Medical Face Masks |
| title_sort | improving filtration efficacy of medical face masks |
| topic | Medical face mask Filtration efficiency Charging Bioaerosols |
| url | https://doi.org/10.4209/aaqr.210043 |
| work_keys_str_mv | AT ilpokulmala improvingfiltrationefficacyofmedicalfacemasks AT kimmoheinonen improvingfiltrationefficacyofmedicalfacemasks AT satusalo improvingfiltrationefficacyofmedicalfacemasks |