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The Benefits of Good Ventilation and a Vape-Free Environment

Key points:

  • Good indoor ventilation and a vape-free environment are essential for reducing the risk of COVID-19 in schools.

  • Optimal air quality has also been shown to improve student performance.

  • Schools should have a plan to deter student vaping, like installing vape detectors and providing quitting resources. Schools can also hire an HVAC professional to assess indoor air quality.


With live school in session for many – and COVID-19 on the rise across the country – some schools may be looking for ways to improve the health of their learning environments. Research shows that good indoor ventilation and a vape-free environment are two new important considerations to prevent COVID-19 transmission.

Why is indoor ventilation important in schools?

COVID-19, along with other viruses, spreads through respiratory droplets released into the air when you talk, cough, or sneeze. These droplets can then land in the mouths or noses of people nearby and get inhaled into the lungs. That’s why staying at least six feet apart from a person is vital in preventing the spread of the virus.

Because maintaining social distancing in schools can be a challenge, quality indoor ventilation is even more critical. The Centers for Disease Control and Prevention (CDC), as well as expert advice in a recent National Public Radio (NPR) interview, recommend that schools assess their

ventilation systems to ensure optimized airflow in each classroom.

There are also additional benefits to breathing in clean air. A healthy learning environment has been shown to improve student performance. One study found that good indoor air quality improved students’ standardized test scores by two to four percent. Another found that it resulted in fewer absences from illness among elementary school students and teachers.

Does vaping increase the risk of COVID-19? How does vaping affect indoor air quality?

Teens and young adults who use e-cigarettes are five to seven times more likely to test positive for COVID-19, according to a recent Stanford University study. Vaping damages lung health, making students more susceptible to infection and severe COVID-19 symptoms if they get the virus.

Also, the very act of vaping itself poses a threat. When a student vapes, they breathe out toxic chemicals and lung secretions that may contain the virus. Vaping devices also collect bacteria that can spread from one student to another when shared.

Lastly, e-cigarette aerosol is a significant source of indoor air pollution, exposing vapors and bystanders to hazardous chemicals.

How can I improve ventilation in my school environment?

The CDC recommends consulting with Heating, Ventilation, and Air Conditioning (HVAC) professionals to ensure your school’s systems are working correctly. It also suggests:

  • Keeping windows open to let fresh air in, depending on the specific building design.

  • Ensuring restroom exhaust fans work at full capacity.

  • Inspecting and maintaining local exhaust ventilation in areas, such as restrooms, kitchens and cooking areas.

  • Using portable high-efficiency particulate air (HEPA) fan and filtration systems, especially in higher-risk areas like the nurse’s office and special education classrooms.

You can also deter vaping inside your school by installing vape detectors and helping your students to quit.

By Kristin Barton, MA, CHES

Reviewed by Cindy Bistany, DHSc

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