12/11/2025
One of the simplest ways to support your immune system this winter?
Open your windows or door for 5–10 minutes a day
Research shows that fresh cold air can:
• reduce airborne viral particles by 50–80%
• decrease transmission risk in shared spaces by up to 70%
• lower indoor CO₂ levels by 40–60% (better focus + less fatigue)
• reduce indoor humidity, decreasing virus survival by 30–50%
• flush out indoor pollutants and VOCs by 60–80%
A tiny, free habit with a measurable impact on winter wellness - especially in tightly sealed Midwest homes.
Do you crack your windows or throw open a door for a few minutes each day in the winter?