In theory, adjusting indoor environments—particularly temperature and relative humidity—could help slow the spread of pathogens like COVID-19 because viruses thrive more in certain conditions.
There have been few studies on this topic, and none specifically on the coronavirus wreaking havoc around the globe, though. Certain viruses prefer high relative humidity, while others including COVID-19, favor low humidity.
There is scant data to determine whether modifying indoor environments would do any good to slow the spread of viral pathogens. Indoor relative humidity may affect how long the virus remains suspended in the air or is viable, but probably not very significantly, according to a retired pulmonary physician.
Further research could find that temperature and relative humidity can have an impact so that the building code could recommend specific environmental conditions to reduce airborne infection risk.
Related Stories
Codes and Standards | Jan 27, 2021
AECOM sues insurance carrier for payment of COVID-19 property damage claims
Claims ‘all-risk policies’ should have included millions of dollars of losses due to virus.
Codes and Standards | Jan 26, 2021
Updated guide to repair and rehabilitate existing concrete structures published
Document assesses how to adhere to code requirements.
Codes and Standards | Jan 25, 2021
New guide for skylight selection, daylighting design released
Free Fenestration and Glazing Industry Alliance document now available.
Codes and Standards | Jan 21, 2021
California considers statewide ban on natural gas heat, hot water in new homes
Code update would take effect in 2023.
Codes and Standards | Jan 20, 2021
Steel industry, labor urge Biden to retain steel tariffs
‘Essential to ensuring the viability of the domestic steel industry.’
Codes and Standards | Jan 19, 2021
2021 Solar Investment Tax Credit will remain at 26%
Incentive was scheduled to be reduced to 22%.
Codes and Standards | Jan 19, 2021
Thomas Jefferson University launches the Institute for Smart and Healthy Cities
Will address climate change, social equity, rapid urbanization, and health.
Codes and Standards | Jan 14, 2021
Petition urges FEMA to update flood maps, set tougher standards for floodplain construction
Environmental and planning groups note soaring claims, flood insurance debt.
Codes and Standards | Jan 13, 2021
Proposed change to IECC process irks efficiency advocates
New procedure would diminish influence of local code officials.
Codes and Standards | Jan 12, 2021
Two net-zero hotel projects could portend a new hospitality trend
Energy-intensive sector comprises 10% of all commercial real estate.