Winter Air Quality in Minnesota: Why It Gets Worse and How to Fix It


Sealing up tight for winter might keep the cold out — but it also traps stale air inside. That’s why indoor air quality (IAQ) can plummet during Minnesota winters.

Common winter IAQ issues:

  • Dry air that irritates skin and sinuses

  • Trapped allergens, dust, and pet dander

  • Reduced oxygen exchange from lack of ventilation


Solutions:

  • Install a whole-home humidifier

  • Upgrade to HEPA or MERV-13 filters

  • Consider an HRV/ERV for fresh air circulation


Cleaner air = a healthier winter.

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Why Your Furnace Might Struggle During Extreme Cold — And What to Do