Have you ever been to a room and felt like it had stale air? Or perhaps you’ve noticed that the air in one room was more pleasant than in another? If so, you may have experienced what is known as Indoor Air Quality (IAQ). IAQ is an important metric to consider when designing both business and residential spaces. But what exactly is the official definition of IAQ? The answer lies in the term calidad del aire interior, or “Indoor Air Quality” in English. This important concept has come to define how we maintain healthy air flow in our indoor spaces. Let’s take a closer look at what defines this important metric and why having good IAQ matters in any living or working space.