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COVID-19: Air cleaning technologies (v1)
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COVID-19: Air cleaning technologies (v1)

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For all CIBSE COVID-19 guidance, see

COVID-19: Air cleaning technologies allows users to assess the variety of air cleaning devices currently marketed for the removal of SARS-CoV-2, and to discover which air cleaner, if any, will effectively reduce transmission risk in a given space. 

This guidance will be of use to lay-readers, and also to those requiring a detailed background of air flow performance metrics, pollutant and viral decay, and tools assessing the performance of air cleaners in context.  

Version 1 (16th July 2021)

CIBSE has also released a digital tool to assist with the methods laid out in this guidance. Download the COVID-19: Relative Exposure Index Calculator from

Authors: Ed Wealend, Chris Iddon, Dzhordzhio Naldzhiev

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