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Efficacy of antimicrobial and anti-viral coated air filters to prevent the spread of airborne pathogens.
Watson, Rowan; Oldfield, Morwenna; Bryant, Jack A; Riordan, Lily; Hill, Harriet J; Watts, Julie A; Alexander, Morgan R; Cox, Michael J; Stamataki, Zania; Scurr, David J; de Cogan, Felicity.
  • Watson R; Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK.
  • Oldfield M; Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK.
  • Bryant JA; Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK.
  • Riordan L; Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK.
  • Hill HJ; Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.
  • Watts JA; Advanced Materials and Healthcare Technologies Division, School of Pharmacy, University of Nottingham, Nottingham, UK.
  • Alexander MR; Advanced Materials and Healthcare Technologies Division, School of Pharmacy, University of Nottingham, Nottingham, UK.
  • Cox MJ; Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK.
  • Stamataki Z; Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.
  • Scurr DJ; Advanced Materials and Healthcare Technologies Division, School of Pharmacy, University of Nottingham, Nottingham, UK.
  • de Cogan F; Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK. f.decogan@bham.ac.uk.
Sci Rep ; 12(1): 2803, 2022 03 09.
Article in English | MEDLINE | ID: covidwho-1735270
ABSTRACT
The COVID-19 pandemic has demonstrated the real need for mechanisms to control the spread of airborne respiratory pathogens. Thus, preventing the spread of disease from pathogens has come to the forefront of the public consciousness. This has brought an increasing demand for novel technologies to prioritise clean air. In this study we report on the efficacy of novel biocide treated filters and their antimicrobial activity against bacteria, fungi and viruses. The antimicrobial filters reported here are shown to kill pathogens, such as Candida albicans, Escherichia coli and MRSA in under 15 min and to destroy SARS-CoV-2 viral particles in under 30 s following contact with the filter. Through air flow rate testing, light microscopy and SEM, the filters are shown to maintain their structure and filtration function. Further to this, the filters are shown to be extremely durable and to maintain antimicrobial activity throughout the operational lifetime of the product. Lastly, the filters have been tested in field trials onboard the UK rail network, showing excellent efficacy in reducing the burden of microbial species colonising the air conditioning system.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Antiviral Agents / Air Filters / Anti-Infective Agents Type of study: Observational study Limits: Humans Language: English Journal: Sci Rep Year: 2022 Document Type: Article Affiliation country: S41598-022-06579-9

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Antiviral Agents / Air Filters / Anti-Infective Agents Type of study: Observational study Limits: Humans Language: English Journal: Sci Rep Year: 2022 Document Type: Article Affiliation country: S41598-022-06579-9