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Indoor air quality goes beyond PM2.5. CO₂ and temperature-humidity balance are critical yet often overlooked. Elevated CO₂ signals poor ventilation, reducing cognitive performance by up to 50%. Meanwhile, temperature and humidity directly affect comfort, immunity, and pollutant behavior. This article reviews scientific findings and provides actionable guidance for homes, offices, and classrooms—helping you maintain CO₂ under 1000 ppm, keep temperature around 22°C, and humidity...

Air quality is directly linked to every breath we take. Terms like “AQI,” “PM2.5,” or “haze” often appear in weather reports or mobile apps—but what do they really mean? This article breaks down the Air Quality Index (AQI) and particulate matter (PM), providing a clear understanding of the fundamentals behind air pollution.     What Is AQI? Your Air’s “Health Report” 1. Definition The...

When Wildfire Season Hits Home This summer, California’s night skies lit up once more with flames. The Gifford Fire glowed against darkness like an open wound, scorching forests and homes—but also consuming the air we breathe. For outsiders, wildfires may seem like distant headlines. For us, they seep into daily life—the flames are visible, but smoke and growing anxiety are palpable. Fire Scope: Size...