Air quality is often one of those hard things to quantify by ourselves. If your house fills with smoke after burning something on the stove, it’s pretty easy to see the problem and fix it by opening a window or two. But most issues with air quality are much more subtle, often going unnoticed for long periods of time. Poor quality air, like air with high levels of pollutants, carbon dioxide or contaminants like mould can have serious health effects. Studies have found poor air quality can lead to increased rates of asthma, decreased cognitive function and intelligence, and significantly lower academic performance in school kids. This video is a great crash course for what how stale air affects the human body.
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