02/17/2026
Spring Allergies in Missouri Are About to Hit Hard
If you deal with:
• Sneezing
• Itchy eyes
• Sinus pressure
• Headaches
• Waking up congested
It’s not just “outside air.”
Most people don’t realize this…
👉 During peak allergy season, indoor air can be 2–5x more polluted than outdoor air.
(EPA data)
When pollen counts rise in spring, every time you open a door, run your system, or even walk inside, those particles get pulled into your home and circulate through your ductwork.
And here’s the problem:
🌿 Pollen particles range from 10–100 microns
🦠 Mold spores can be as small as 3 microns
🐾 Pet dander is often under 5 microns
A standard 1” filter doesn’t catch the smallest particles. And small plug-in air purifiers? They only clean the air in one room — not your entire house.
That means allergens are constantly cycling through bedrooms, living rooms, and return ducts.
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So what actually works?
Whole-home air purification systems install directly into your HVAC system.
They:
✔ Treat every cubic foot of air that passes through
✔ Reduce airborne allergens, bacteria, and odors
✔ Work 24/7 while your system runs
✔ Cover your entire home — not just one room
These systems are designed to actively clean the air, not just passively trap particles.
⸻
Spring pollen season in southwest Missouri usually ramps up fast once trees bud.
If allergies hit your household every year, the best time to address it is before it peaks.
If you’d like to talk about improving the air quality in your home, message me or call to schedule an evaluation. I can check your current filtration setup and explain your options.
Let’s make this spring easier to breathe through. 🌿
— Dean’s Heating & Air
