flexiblefullpage -
billboard - default
interstitial1 - interstitial
Currently Reading

Steps to improve ventilation for Covid can combat colds and flu

billboard - default
interstitial1 - interstitial
Codes and Standards

Steps to improve ventilation for Covid can combat colds and flu

New look at airborne disease spread shows time viruses linger in air may have been underestimated.

By Peter Fabris, Contributing Editor | September 21, 2021
Ceiling ventilation

Courtesy Pixabay

The way viruses spread from human to human is being reevaluated by scientists and that may have an impact on future ventilation standards.

At the outset of the Covid-19 outbreak, the prevailing belief was that the virus was spread via droplets that quickly dropped out of the air. As researchers studied the virus, however, they realized that it was likely spread via aerosols—smaller, lighter particles that travel further than six feet and can linger in the air in poorly ventilated spaces.

Colds and flu have been thought to be primarily spread via droplets, as well, as they hold more viruses than aerosols. But studies have found that a smaller amount of influenza virus is needed to infect people when inhaled as aerosols rather than sprayed up the nose as saliva droplets.

If this view is correct, improved ventilation could greatly reduce transmission of colds and flu viruses as well as Covid. For this reason, some believe new minimum ventilation standards in buildings should be enacted especially when one considers some 12,000 to 61,000 people annually succumb to the flu.

Related Stories

Codes and Standards | Jan 24, 2022

N.Y. governor calls for ban on natural gas in new buildings

Action follows New York City’s ban.

Codes and Standards | Jan 19, 2022

EPA may expand product lineup that can earn WaterSense label

Would include systems that enhance water quality at the tap.

Codes and Standards | Jan 19, 2022

Canada’s Trudeau seeking building codes changes, net-zero emissions building strategy

Prime minister also wants net-zero electricity grid by 2035.

Codes and Standards | Jan 18, 2022

Greater emphasis on building materials needed to achieve net-zero carbon offices

Engineered wood, straw, and bamboo can be keys to achieving goal.

Codes and Standards | Jan 17, 2022

AISC seeks comments on draft earthquake standard for steel buildings

Includes new limits for cross-sectional slenderness of steel columns based on latest research.

Codes and Standards | Jan 12, 2022

California’s wildfire building code significantly reduces structural loss

As other states consider upgrading their codes, Golden State provides useful model.

Codes and Standards | Jan 12, 2022

Regulator holding back climate-friendly, energy-saving equipment deployment, critics say

Heat pumps, solar power could be made more accessible for low-income communities in Massachusetts.

Codes and Standards | Jan 11, 2022

Cost hikes drive nearly one million renters out of homeownership qualification in 2021

Household income needed to pay a mortgage rose to $62,872 from $55,186.

Codes and Standards | Jan 10, 2022

New ratings services focus on climate risk for homeowners

Efficacy of models used in risk assessment varies.

boombox2 -
native1 -
halfpage1 -

Most Popular Content

  1. 2021 Giants 400 Report
  2. Top 150 Architecture Firms for 2019
  3. 13 projects that represent the future of affordable housing
  4. Sagrada Familia completion date pushed back due to coronavirus
  5. Top 160 Architecture Firms 2021


Magazine Subscription

Get our Newsletters

Each day, our editors assemble the latest breaking industry news, hottest trends, and most relevant research, delivered to your inbox.


Follow BD+C: