COVID-19 Guidance

May 25, 2020

As response to the coronavirus (COVID-19 or SARS-CoV-2) pandemic, REHVA experts drafted a guidance document on how to operate and use building services in areas with a coronavirus outbreak to prevent the spread of COVID-19 depending on HVAC or plumbing systems related factors.

This REHVA document has been updated (as of 3 April) and considers the best available evidence and knowledge to date, utilizing an ongoing Dutch literature review elaborated by dr. Francesco Franchimon, complemented by international REHVA experts as a joint effort.

Due to the ever-changing information about the disease, the document will be updated and complemented with new evidence when it becomes available. REHVA thanks the co-authors of this document for their much-appreciated contribution.

On April 3, the REHVA COVID-19 guidance document from March 17 has been updated with the following revisions and additions:

  • Latest information on the airborne transmission and implications to HVAC systems was added;
  • Ventilation continuous operation guidelines were updated to be explicit;
  • SARS-CoV-2 stability data at different temperatures and relative humidity was added;
  • Heat recovery equipment guidance was revised including the recommendation of inspection;
  • Guidance for room level circulation units was complemented;
  • HVAC maintenance personnel protection recommendation was added;
  • A summary of 14 points of practical measures for building services operation was added.

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