How NOT to Pick HVAC Registers and Grilles: Aria Vents Test Data Reviewed

One of my HVAC design clients sent me a question about these vent covers he found online, and it cracked open the whole basket of eggs. Here's a brain dump on how to look up the performance data on products like this. Here's a brand of decorative grilles that perform well- I know because I test them: https://stellarairdecorativeventcovers.com/

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Filterless Air Cleaners Make No Sense: Airfree Lotus Air Purifier

Honestly, it's starting to piss us off that some of these marketing teams are combining their shocking lack of understanding of what they're selling, with an assumption that their customers won't be able to understand it either. Let's fix that right now, starting with this Airfree Lotus 'filterless air purifier'. Oh, and they make one specifically for baby rooms too, if this wasn't dumb enough already.

If you need cleaner air, use good filters, or dilute with outdoor air using something as simple and affordable as an AirCycler: https://www.aircycler.com/

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How Perfect Can a New Home's Chemistry Get? Healthy Indoors Minute

Even with their newly-finished home still obviously off-gassing, and with a massive amount of wood finishes and structural materials certainly emitting formaldehyde, this high performance forever home is testing like a decades-old, well-established house as told by chemist Alice Delia of Prism Analytical. Through the selection of low-emitting materials where possible AND 24/7 ventilation of the spaces, the Lunsfords have achieved their goal of a sanctuary with limited chemistry.

Learn a ton more at: http://HomeDiagnosis.tv/atlanta-homestead

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Test your own home: http://pati-air.com

Air On Fire: Mindblowing Picture of Your Home's Indoor Chemistry

It's hard to believe in something you can't see, so let us show it to you. Learn the most basic facts about the chemistry of the air around your face, every minute of every day of your life. Thanks to our 18 show sponsor companies and three dozen Patreon supporters for making this show season possible. Help support our work at: http://Patreon.com/HomeDiagnosisTV See the show at: http://HomeDiagnosis.tv

Wild Kingdom Around Us 24/7: Microbiology of Homes with Rob Dunn

In one of my all-time favorite (and longest) interviews, we talk with Rob Dunn, a researcher and expert on ecology within homes and author of the amazing book 'Never Home Alone' (http://robdunnlab.com/). The conversation ranges from black mold in drywall to biofilm in plumbing to the extreme environments within our 'normal' American homes- and where we're headed.

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WRB Sheathing vs. House Wrap: Landus Bennett’s Building Science Field Lab

Hear from the inventors of two WRB sheathing systems about why taped WRB panels are taking over for housewraps, and how to abuse your building materials to see how tough they are. Shot at the Watson Springs research lab with building scientists Landus Bennett. More at: http://WatsonSprings.com

Thanks to our Patreon supporters for helping us continue exploring the science of homes! Become a member at: http://Patreon.com/HomeDiagnosisTV

Whole House Fan Mythbusting

You know what I don’t like? When people try selling one product across America with pseudoscience or vague claims about benefits in home physics, chemistry, or microbiology. Here’s my rebuke to one specific instance of this kind of over-stated marketing in the world of ‘cooling your house as cheaply as humanly possible’.

How to Build Bolt-On Roof Eaves Separately from the Enclosure

Corbett Lunsford demonstrates how to add 2-ft. eaves to a high performance home enclosure using 475 Building Supply tapes and membranes and ForceField WRB. Check out the sealing products used at: http://FourSevenFive.com

More on this build at: https://HomeDiagnosis.tv/atlanta-homestead

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HVAC Filter Secrets

Home Diagnosis co-host Corbett breaks down some secret foundations for how filters work and why you should be thinking about WAY more than the fiberglass screen in your furnace. Read Healthy Indoors Magazine at: http://HealthyIndoors.com
Watch Home Diagnosis at: http://HomeDiagnosis.tv

Heroes of HOMEChem: Delphine Farmer, Atmospheric Chemist

Meet Dr. Delphine Farmer, Co-Principal Investigator for HOMEChem, and the team's ToolMaker. More at: https://HomeDiagnosis.tv/homechem