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November 2, 2025 52 mins

Have you ever wondered what happens to the chemicals inside your home once they leave the bottle… or the carpet, paint, or sofa? 

Dr. Charles Weschler joins us to unpack the surprising science of indoor chemistry, revealing how modern materials quietly release volatile organic compounds (VOCs) into your home’s air, onto dust, and even through your skin. He explains how post–World War II innovations such as synthetic compounds, polymers, and chemical additives found in everything from carpets to cleaners to flame retardants can contribute to indoor air pollution and affect your health. 

Dr. Weschler offers simple, science-backed strategies to minimize exposure, while warning against chemical-producing cleaning devices that may do more harm than good. 

Tune in to discover how small changes in your cleaning habits and home environment can lead to big improvements in your indoor air and your health.

Episode Highlights

·      What is indoor chemistry and what are VOCs?  (4:45)

·      What are some surprising sources of chemical exposures in our homes, and how do those chemicals interact in indoor air? (7:49)

·      How do modern indoor chemicals impact human health? (13:33)

·      How does dermal absorption of indoor chemicals occur? (17:01)

·      What’s the healthiest way to clean and reduce chemical exposure? (22:58)

·      How does ozone affect us indoors? (32:36)

·      Are chemical-generating cleaning devices helpful or hurtful? (37:50) 

·      What are the best solutions to reduce and prevent harmful chemical emissions indoors? (44:29)

To see a complete list of links mentioned in this interview, visit ChangeTheAirFoundation.org

Get in touch with our guest:

Dr. Charles Weschler’s LinkedIn profile: https://www.linkedin.com/in/cweschler/

Learn more about Change the Air Foundation:  

https://ChangeTheAirFoundation.org

Sign up for our newsletter: 

https://ChangeTheAirFoundation.org/stay-informed/

Disclaimer: Your Indoor Air Podcast, a Change the Air Foundation production, is for general informational purposes only and does not constitute the practice of medicine, nursing, healthcare or other professional services, such as giving healthcare advice. The use of information on this podcast or materials linked from this podcast is at the user’s own risk. The content of this podcast is not intended to be a substitute for professional medical care.  Users should not disregard or delay in seeking medical attention for any medical condition or concern they may have.





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