Indoor CO₂ levels matter more than we think 🌫️ High CO₂ can make breathing harder, reduce oxygen intake, trigger headaches, fatigue, and even worsen lung issues over time. Fresh air isn’t a luxury — it’s a necessity for healthy lungs 🌬️🫁 Keep windows open, ventilate often, and let your lungs breathe better. #lunghealthlibrary #lungs #IndoorAirQuality #CO2Levels #LungHealth #BreathBetter #AirPollutionIndoors #HealthyHome #VentilationMatters #AsthmaCare #RespiratoryWellness #CleanAir #HealthAwareness #WellnessTips #EnvironmentalHealth #IndoorEnvironment #LungCare#winter