Effectiveness of HVAC filters and room air purifiers in mitigating indoor particulate matter

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Emerson Helix Home in Environmental Chamber

As the COVID-19 pandemic has spread and made its impact worldwide, air filtration has risen to prominence as a potential solution to the spread of viral contagions, as well as in addressing air pollution in general. In the United States, high-efficiency HVAC filters and RAPs (room air purifiers) are widely used for mitigating indoor particulate …

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