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Green Design (Green Renovation) is healthy renovation. Healthy renovation requires a systematic quality control process. "Green" has two layers of meaning: the first is health, and the second is sustainability. Beyond prioritizing human health, it must also align with environmental sustainability. Therefore, "human-centric health and global sustainability" has become the most crucial indicator for promoting Green Renovation Certification.

Green Renovation Certification is defined by "Three Phases, Four Stages, and Five Safeguards." "Three Phases" refers to the pre-renovation, mid-renovation, and post-renovation periods of the renovation process. "Four Stages" encompasses planning and design, building material application and management prior to construction; environmental management during the mid-renovation stage; and the final completion inspection and acceptance. This is also the only certification in the world that evaluates the entire renovation process, rather than just the final inspection upon completion. "Five Safeguards" means providing quality control and protection for designers, material suppliers, equipment manufacturers, construction crews, and consumers. Simply put, the three core eliminations of Green Renovation are: eliminating non-transparent building materials, eliminating toxic renovation, and eliminating renovations without a traceability record.

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