Problem: This passage stood out to me because it highlights how indoor air quality (IAQ) directly affects our health, sometimes even more than outdoor pollution. I never realized that modern buildings, with their airtight designs and synthetic materials, could actually make people sick. The idea of sick building syndrome is concerning because it means people can experience health issues just from spending time indoors, without a clear cause. This makes me think more about how sustainable design should focus not just on saving energy but also on creating healthier indoor spaces. One interesting approach to improving IAQ is biophilic design, which incorporates plants to help filter indoor air. NASA research has shown that certain plants, like the snake plant and peace lily, can remove toxins, but I wonder if they are enough on their own. This raises important questions: How can we balance energy efficiency with proper ventilation? These are key challenges for the future of sustainable design. Need Assignment Help?