Indoor Air Geek is my corner of the internet dedicated to making the invisible world of indoor air simple, understandable, and—dare I say—interesting. Buildings breathe, leak, mix, filter, and move air in ways most people never think about. But these hidden processes shape our comfort, our health, and even our ability to think clearly. My goal is to break down the complex science behind indoor air into plain language that anyone can grasp.
Why This Matters (Even If You’re Not a “Building Person”)
When people understand the basics of ventilation, filtration, and pollutants, they make better decisions for their homes, workplaces, and communities.
You don’t need to be an engineer to understand why fresh air matters, why filters help, or why some buildings feel “stuffy” while others feel crisp and clean. You just need someone to translate the jargon into real‑world language. That’s what this blog is for.
What I’ll Be Breaking Down (Without the Technical Headache)
Indoor Air Geek will walk you through the fundamentals—step by step, without the alphabet soup of acronyms or the heavy math. Think of it as Indoor Air Quality for Humans, not specialists. Here are some of the core ideas we’ll explore together:
Infiltration & Exfiltration
How air sneaks into and out of buildings—through cracks, gaps, pressure differences, and temperature swings. It’s the building’s version of breathing through its skin.
Entrainment & Attainment
Why some air gets pulled along for the ride (entrainment) and why some air is deliberately delivered (attainment). These two concepts explain half of what people feel but can’t describe
Air Changes per Hour (ACH)
A simple number that tells you how often the air in a room is replaced. More fresh air = cleaner, healthier spaces
Fresh Outdoor Air
Why bringing in outside air—properly—is one of the most powerful tools for reducing pollutants, odors, and airborne particles
Filtration & Mixing
How filters function, what they don’t do, and why mixing is important to deliver clean air effectively
My Approach: Clear, Practical, No‑Nonsense
I’m not here to overwhelm you with technical diagrams or 200‑page manuals. The EPA and school‑IAQ programs have shown that the most effective education is:
- Simple
- Actionable
- Visual when possible
- Focused on what people can actually control
So that’s the approach I’m taking.
Each entry will provide you with:
- A high‑level explanation
- A real‑world analogy
- A simple takeaway
- And, when helpful, a quick “what to do about it”
You get clear information—without guilt, complicated language, or any pressure
The Mission of Indoor Air Geek
To help everyday people understand the air they live in, work, and breathe in is a gift from God.
So they can make better choices, ask better questions, and create healthier indoor spaces.
Whether you’re a parent, a teacher, a facilities manager, a homeowner, or just someone who wants to know why your office feels stuffy at 3 PM, you’re in the right place. Welcome to the journey.
Let’s make the invisible… visible