Which innovative product feature became a signature element of biophilic design in commercial architecture after 2015?

Biophilic design has emerged as a significant trend in architectural product development, connecting occupants with nature through building materials, spatial configurations, and environmental features. This approach not only enhances aesthetic appeal but has been proven to improve productivity, reduce stress, and accelerate healing in various environments. Test your knowledge about this revolutionary design philosophy that's transforming the architectural product landscape.

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Living walls with integrated irrigation systems
Granite countertops with natural veining
Wood-patterned vinyl flooring
Exposed concrete structural elements