What is one way to improve indoor air quality?

Improving indoor air quality is crucial for creating a healthy environment. One effective method is through the installation and maintenance of proper ventilation systems. Proper ventilation helps to circulate air, reducing the concentration of indoor pollutants and bringing in a steady supply of fresh outdoor air. This is especially important in spaces where pollutants may accumulate, such as kitchens, bathrooms, and tightly sealed buildings.

Ventilation systems can include various components, such as exhaust fans, air circulators, and air exchange systems that bring in outdoor air while expelling stale indoor air. Regular maintenance ensures these systems work efficiently, which directly contributes to effective air quality management by controlling humidity, reducing mold growth, and lowering the levels of volatile organic compounds (VOCs) and other harmful pollutants.

While the other options may contribute positively to the environment or energy efficiency, they do not directly address the mechanics of air quality improvement in the same manner that proper ventilation does. For instance, enhancing natural light or increasing the number of plants can offer benefits like improving mood and aesthetics but may not significantly impact air quality without a proper ventilation strategy in place.