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Straight answers about indoor air quality, without the sales pitch.

• September 1, 2026

  Why your HVAC contractor won't show you this upgrade

  In-duct air purification isn't hard to sell — it's just not in most contractors' lineup. Here's why, and what it means for you.

• August 18, 2026

  Whole-house vs. plug-in air purifier: what's actually worth buying

  Portable purifiers and in-duct systems solve different problems. Here's how to think about which one your home actually needs.