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Indoor air environments are usually poor. Just having outside air from open windows would be an improvement.
by throw7 2y ago
Indoor air environments are usually poor. Just having outside air from open windows would be an improvement.
- dzhiurgis 2y agoWhich easily excludes 80%+ of the places either due cold, heat or pollution.
- ClumsyPilot 2y agoProper ventilation systems address that issue