We’ve been told that opening windows is enough to clean up indoor air. And sometimes, it is. But not for most people, and not without tradeoffs.
Lüften, the practice of opening windows fully for 15 to 30 minutes a day, is widely recommended as a way to bring in fresh air. But in modern buildings and especially for sensitive individuals, it often doesn’t work the way people think it does.
This is the first video in a 4-part series on ventilation strategies that actually work year-round, even for renters. I break down the hidden limitations of Lüften and why I rely on ERVs (energy recovery ventilators) to get truly clean air indoors.
If you’re dealing with biotoxin illnesses like CIRS or MCS, this one’s for you.
My videos I referenced/products:
Air quality testing and mold inspection around the US: https://youtu.be/Dt7qnePPinQ
How to monitor and control indoor humidity based on outdoor conditions: https://youtu.be/JOZ5TZ-oaP8
How humidity/temperature vary around the world: https://youtu.be/98XFiOMEz7s
How to do a DIY installation of an energy recovery ventilator (ERV): https://youtu.be/CnLwJxCbxfM
Aranet4 CO2 monitor/hygrometer: https://amzn.to/3FmN7xu
If you found this video helpful, don’t forget to like, comment, and subscribe for more practical, evidence-based protocols to improve indoor air quality—especially for those dealing with CIRS, MCS, mold illness, or other environmentally-acquired conditions.
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