A large trial found no evidence that Hepa air filters reduce respiratory infections in care homes, challenging assumptions about their role in infection control.
Articles on HEPA filters
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The notion that wildfire smoke is ‘natural,’ and therefore less harmful than other types of air pollution, is not supported by the evidence. Wildfire smoke has been linked to adverse health effects.
$13 billion would buy us safe air in schools and aged care facilities. It would give the same sort of benefits as safe water.
COVID has given us the opportunity to ensure our air is as safe as our water. It needn’t be expensive.
Governments and companies alike are budgeting millions for air cleaning technologies to curb the spread of COVID. Experts say standard building ventilation - and social distancing - work
Air-ventilation upgrades have been badly needed in U.S. classrooms since long before the pandemic. Low-tech filtration systems that cost about the same as a textbook per student can make a big difference.
A$50 million could provide all NSW school classrooms with air purifiers with HEPA filters. This pales compared to the roughly $220 million-a-day cost of Sydney’s lockdown.
Plugging ventilation holes in walls helps, but there are dangers.
Top contributors
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Adjunct Professor of Architecture, University of Technology Sydney
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Senior Lecturer, UNSW
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Assistant Professor, Faculty of Health Sciences, Simon Fraser University
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Research associate, Built environment, University of Nottingham
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Professor, Environmental Science, UNSW
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Visiting Fellow, Crawford School of Public Policy, Australian National University
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Professor, Faculty of Health Sciences, Simon Fraser University
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Associate Professor, Department of Architecture and Built Environment, University of Nottingham
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Professor of Medicine, University of East Anglia
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S. J. Archuleta Professor of Environmental Engineering, University of Colorado Boulder
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Senior Research Associate, Norwich Medical School, University of East Anglia