Designers, engineers, and commercial building owners have several ways to safeguard indoor air during the COVID-19 pandemic.
Office buildings can slow the spread by spacing desks at least six feet apart and by implementing a few ventilation measures including increasing outdoor air flow. Installing Minimum Efficiency Rating Value (MERV) 13 and above filters—commonly used in hospitals—in air handlers can also have an impact. Indoor air cleaners with high-efficiency particulate air filters will remove even more particulates including pathogens.
Lesser-known strategies include CASPR (Continuous Air and Surface Pathogen Reduction) devices that spray trace amounts of hydrogen peroxide into indoor air that kills pathogens in the air and on surfaces. Short-wave ultraviolet light is also effective in neutralizing pathogens.
This technology can be employed by installing Ultraviolet Germicidal Irradiation [UVGI] in high-room [9-feet or higher] lighting applications in mechanical units and heating ducts.
Related Stories
Codes and Standards | May 25, 2021
International Energy Agency lays out roadmap to net zero
Focus is on energy generation, but building efficiency also plays a role.
Codes and Standards | May 24, 2021
Biden Administration will make new investments in building energy efficiency
Focus on grid-interactive buildings; Energy Star expansion; new targets for energy, water reduction.
Codes and Standards | May 20, 2021
Solar panel trade group issues guidelines to rid use of components built with forced labor
Growing concern that PV industry is dependent on work camps in China.
Codes and Standards | May 19, 2021
Smart electric panels can aid transition to renewable energy
Allow customers better control of circuits; utilities can better manage demand.
Codes and Standards | May 18, 2021
Cross-laminated timber performs better than expected in shear test
Tests conducted in support of new criteria for design of CLT diaphragm.
Codes and Standards | May 17, 2021
Latest Manual on Uniform Traffic Control Devices criticized for not considering bikes, pedestrians
More than a dozen advocacy groups want feds to start over.
Codes and Standards | May 13, 2021
LEED-certified federal buildings don’t use less energy than average
May be due to trade-offs on how score is developed.
Codes and Standards | May 12, 2021
White paper examines how to reduce pathogen transmission in ventilation
Pressure barriers and airflow distribution can be effective in existing buildings.
Codes and Standards | May 11, 2021
Pressure builds on White House to rein in cost of lumber
Spike in prices has added nearly $36,000 to price of average new home.
Codes and Standards | May 11, 2021
Residential codes should be upgraded to protect from cooking pollutants
Report examines ventilation standards, calls for increased public awareness of issue.
