Most “Indoor Air Quality upgrades” are just gadgets in a box. And a lot of them can make things worse.

HVAC and building science veteran John Ellis joins Sam Myers and Ben Walker to break down what actually moves the needle in a home: thermal comfort, ventilation, filtration, humidity control, building pressure, and source control.

If you build, renovate, or work on HVAC, this episode will change how you think about “clean air” and what it takes to actually deliver it.

Video Notes:
Indoor Air Quality and Environmental Changes (0:00)
Ventilation and Indoor Air Quality Measurements (1:43)
Dust Free 16 Filter Development (5:59)
Filter Media and Performance (10:07)
Distribution and Market Reception (14:16)
Indoor Air Quality and Building Science (15:59)
Challenges in the HVAC Industry (26:24)
Data-Driven Solutions and Training (39:51)
Menu Pricing System for IAQ Services (42:04)
Future Developments and Final Thoughts (44:18)

Connect with :
John Ellis
LinkedIn: https://www.linkedin.com/in/john-ellis-b13b0411/

Follow Hosts:
Ben Walker (Co-CEO, Retrotec)
LinkedIn: https://www.linkedin.com/in/ben-walker-4a05901/

Sam Myers (Building Science Specialist & Trainer)
LinkedIn: https://www.linkedin.com/in/sam-myers-ms-a9a4a546/

Website: https://retrotec.com/
Facebook: https://www.facebook.com/retrotec/
Instagram: https://www.instagram.com/retrotec/
YouTube: https://www.youtube.com/@RetrotecEnergy/

Listen on
Spotify: https://open.spotify.com/show/3xMDAhIttUTHWK41DH7KhB

Don’t forget to subscribe for more episodes on airtightness, ventilation strategies, and innovations in building science!

#BuildingScience #AirtightnessTesting #EnergyEfficiency #BuildingPerformance #HVAC #Retrotec #GreenStar #EnergyWaste #HomeImprovement

Everyone blames the HVAC System. Most of the time, that’s wrong. Nikki Krueger breaks down why modern homes struggle with humidity, even with high-efficiency systems, and why dehumidification has become a missing piece in comfort, health, and durability.

Sam, Ben and Nikki talk crawl spaces, shoulder seasons, overcooling, air leakage, ventilation mistakes, and the real-world install details contractors keep getting wrong.

If you work on houses, or live in one ... this conversation will change how you think about moisture control.

Video Notes:
Placement and Ducting of Dehumidifiers (2:31)
Air Distribution and Heat Generation (6:08)
Retrofitting and Challenges in Existing Homes (8:51)
Humidity Control and Building Codes (12:20)
Ventilation Strategies and Industry Advancements (29:07)
Contractor Mistakes and Best Practices (38:56)
Industry Collaboration and Future Directions (48:11)
Final Thoughts and Future Opportunities (49:52)

Connect with :
Nikki Kruger
Website: www.-Santa-Fe-Products.com
LinkedIn: https://www.linkedin.com/in/nikkikrueger/
Instagram: https://www.instagram.com/nikkikrueger_iaq/
Facebook: https://www.facebook.com/nikki.krueger.71

Follow Hosts:
Ben Walker (Co-CEO, Retrotec)
LinkedIn: https://www.linkedin.com/in/ben-walker-4a05901/

Sam Myers (Building Science Specialist & Trainer)
LinkedIn: https://www.linkedin.com/in/sam-myers-ms-a9a4a546/

Website: https://retrotec.com/
Facebook: https://www.facebook.com/retrotec/
Instagram: https://www.instagram.com/retrotec/
YouTube: https://www.youtube.com/@RetrotecEnergy/

Listen on
Spotify: https://open.spotify.com/show/3xMDAhIttUTHWK41DH7KhB

Don’t forget to subscribe for more episodes on airtightness, ventilation strategies, and innovations in building science!

#BuildingScience #AirtightnessTesting #EnergyEfficiency #BuildingPerformance #HVAC #Retrotec #GreenStar #EnergyWaste #HomeImprovement

High school students are building real, high-performance homes… and hitting 0.9 ACH50. Matt Blomquist joins The Flow Lab to unpack how his class builds tighter houses than most pros, why blower-door testing is a game-changer, and how hands-on education is shaping the next generation of builders.

If you care about building science, air sealing, or the future of the trades, this episode hits hard.

Matt Blomquist's Journey into Teaching and House Building (0:00)
Starting the House Building Program (3:16)
Student Involvement and Class Structure (4:31)
Challenges and Achievements in House Building (42:20)
High Performance Building Science (42:38)
Impact and Future of the Program (42:54)

Video Notes:
Matt Blomquist's Journey into Teaching and House Building (0:00)
Starting the House Building Program (3:16)
Student Involvement and Class Structure (4:31)
Challenges and Achievements in House Building (42:20)
High Performance Building Science (42:38)
Impact and Future of the Program (42:54)

Connect with :
Matt Blomquist
Instagram: https://www.instagram.com/build_learn_teach/
TikTok: https://www.tiktok.com/@build_learn_teach
LinkedIn: https://www.linkedin.com/in/mattblomquist/

Follow Hosts:
Ben Walker (Co-CEO, Retrotec)
LinkedIn: https://www.linkedin.com/in/ben-walker-4a05901/

Sam Myers (Building Science Specialist & Trainer)
LinkedIn: https://www.linkedin.com/in/sam-myers-ms-a9a4a546/

Website: https://retrotec.com/
Facebook: https://www.facebook.com/retrotec/
Instagram: https://www.instagram.com/retrotec/
YouTube: https://www.youtube.com/@RetrotecEnergy/

Listen on
Spotify: https://open.spotify.com/show/3xMDAhIttUTHWK41DH7KhB

Don’t forget to subscribe for more episodes on airtightness, ventilation strategies, and innovations in building science!

#BuildingScience #AirtightnessTesting #EnergyEfficiency #BuildingPerformance #HVAC #Retrotec #GreenStar #EnergyWaste #HomeImprovement