Natural ventilation, operable windows, clerestory windows, solar chimneys, wind catchers, roof turbines, whole-house fans, evaporative cooling systems, radiant barrier insulation, reflective roofing materials, light-colored exterior finishes, high-albedo roofs, green roofs, living walls, breathing buildings, passive house design, low-energy architecture, sustainable building practices, comfortable indoor climate, optimal air exchange rates, reduced energy consumption, environmental sustainability, eco-friendly ventilation solutions, healthy indoor air quality.