ArticleThe Annals of occupational hygiene2007
Physical collection efficiency of filter materials for bacteria and viruses.
Article in The Annals of occupational hygiene, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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Who cites it
54 citing papers in PubMed.
- Air Purifier Intervention for Respiratory Viral Exposure in Elementary Schools: A Secondary Analysis of a Randomized Clinical Trial.JAMA network open · 2025Trial
- Linking ambient fire emissions to respiratory effects using gelatin filter sampling.Journal of hazardous materials · 2026Article
- Surface-Engineered Filters for Wettability-Driven Collection of Airborne Fungal Spores.Global challenges (Hoboken, NJ) · 2026Article
- Marine influence on airborne bacterial community composition and predicted functional potential in coastal zones: a case study from Ostend, Belgium.Scientific reports · 2026Article
- Surveillance on California dairy farms reveals multiple possible sources of H5N1 influenza virus transmission.PLoS biology · 2026Article
- Pepper mild mottle virus as a potential indicator of occupational exposure to airborne viruses in wastewater treatment plants.Annals of work exposures and health · 2025Article
- Chemical Analysis of Deep-Lung Fluid Derived from Exhaled Breath Particles.Analytical chemistry · 2025Article
- Nanofibrous filters: A promising solution for the efficient capture of polydisperse viral aerosols.Aerosol science and technology : the journal of the American Association for Aerosol Research · 2025Article
- Assessment of a membrane filter coated with hygroscopic glycerol for improved recovery of airborne viable bacteriophage MS2.Aerosol and air quality research · 2024Article
- Zoonoses in the workplace: A Seroprevalence study ofPublic health challenges · 2024Article
- Laboratory studies on the infectivity of human respiratory viruses: Experimental conditions, detections, and resistance to the atmospheric environment.Fundamental research · 2024Review
- Advancements in Airborne Viral Nucleic Acid Detection with Wearable Devices.Advanced sensor research · 2024Article
- Performance evaluation of an electrostatic precipitator with a copper plate using an aerosolized SARS-CoV-2 surrogate (bacteriophage phi 6).Environmental technology & innovation · 2023Article
- Mechanisms, Techniques and Devices of Airborne Virus Detection: A Review.International journal of environmental research and public health · 2023Review
- SARS-CoV-2 Aerosol and Surface Detections in COVID-19 Testing Centers and Implications for Transmission Risk in Public Facing Workers.International journal of environmental research and public health · 2023Article
- Fast Air-to-Liquid Sampler Detects Surges in SARS-CoV-2 Aerosol Levels in Hospital Rooms.International journal of environmental research and public health · 2022Article
- SARS-CoV-2 air and surface contamination in residential settings.Scientific reports · 2022Article
- The size and culturability of patient-generated SARS-CoV-2 aerosol.Journal of exposure science & environmental epidemiology · 2022Article
- Electrospun Nanofibrous Membranes for Controlling Airborne Viruses: Present Status, Standardization of Aerosol Filtration Tests, and Future Development.ACS environmental Au · 2022Review
- Definition of an Indoor Air Sampling Strategy for SARS-CoV-2 Detection and Risk Management: Case Study in Kindergartens.International journal of environmental research and public health · 2022Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The purpose of this study was to determine the physical collection efficiency of commercially available filters for collecting airborne bacteria, viruses, and other particles in the 10-900 nm (nanometer) size range. Laboratory experiments with various polytetrafluoroethylene (PTFE), polycarbonate (PC) and gelatin filters in conjunction with Button Inhalable samplers and three-piece cassettes were undertaken. Both biological and non-biological test aerosols were used: Bacillus atrophaeus, MS2, polystyrene latex (PSL), and sodium chloride (NaCl). The B.atrophaeus endospores had an aerodynamic diameter of 900 nm, whereas MS2 virion particles ranged from 10 to 80 nm. Monodisperse 350 nm PSL particles were used as this size was believed to have the lowest filtration efficiency. NaCl solution (1% weight by volume) was used to create a polydisperse aerosol in the 10-600 nm range. The physical collection efficiency was determined by measuring particle concentrations size-selectively upstream and downstream of the filters. The PTFE and gelatin filters showed excellent collection efficiency (>93%) for all of the test particles. The PC filters showed lower collection efficiency for small particles especially <100 nm. Among the tested filters, the lowest collection efficiencies, 49 and 22%, were observed for 1 and 3-microm pore size PC filters at the particle sizes of 47 and 63 nm, respectively. The results indicate that the effect of filter material is more significant for the size range of single virions than for bacteria. The effect of filter loading was examined by exposing filters to mixtures of PSL particles, which aimed at mimicking typical indoor dust levels and size distributions. A 4-h loading did not cause significant change in the physical collection efficiency of the tested filters.
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