What was the major concern for visitors touring the Built Green Idea Home near Seattle?

The major concern for visitors touring the Built Green Idea Home near Seattle centered around indoor air quality. This focus highlights the growing awareness and importance of creating homes that not only conserve energy and resources but also promote a healthy living environment for inhabitants. Indoor air quality is influenced by various factors such as ventilation, the materials used in construction, and the presence of pollutants.

Visitors may have been particularly interested in features such as advanced air filtration systems, non-toxic building materials, and sustainable practices that ensure clean air circulation. Addressing indoor air quality is essential in modern home design, as it directly affects the health and well-being of residents. Unlike other options, while energy efficiency, water conservation, and construction costs are significant aspects of sustainable building practices, the specific concern here emphasizes the need for safe and healthy air in living spaces.