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Design-for-Environment (DfE) is an engineering methodology in which the environmental characteristics of a product are considered and optimized at the design stage. By knowing that the environmental impact of products is determined at the stage of design, DfE design can help us to reduce the environmental impact of our products.

To accomplish this objective, ASUS established its Design for Environment (DfE) program. By actively implementing and continuously improving our DfE policies and practices, ASUS has established an integrated platform of DfE guidelines, design procedures, and software solutions that are used to develop environmentally-friendly product in a systematic and efficient way.

The Design for Environment program has three aspects:

  • Environmental materials selection: reduce/eliminate the amount of hazardous substances used in our products through materials selection and use materials that will have more value at end-of-life reuse/recycling.
  • Easy reuse and recycling: design products that are easy to be reused, recycled, and disassembled.
  • Energy efficiency: reduce the product's energy usage

ASUS's DfE guidelines require that its product designers consider the following:

  • Eliminate the use of hazardous substances.
  • Use recyclable parts
    • Use homogenous materials in mechanical parts weighing over 100g.
    • Make plastic material components with a single resin. If compound materials are required, evaluage the compatibility of materials with one another and with the recycling process.
    • Label components whose weight is over 25g in accordance with ISO 11469 standard.
    • Avoid using surface painting and electroplating for parts.
    • Avoid using metalizing process for plastic parts.
      Recycle waste products or make them into new products
    • Use post-consumer recycled material as a feedstock in the manufacturing process, to the maximum extent possible.
    • Reduce the printing on plastic parts to the maximum extent possible.
      Reduce the use additives in plastics to the maximum extent possible.
    • Separate recyclable raw materials (avoid the gluing or welding of different materials)
    • Use color materials within the present ASUS color numbers to the maximum extent possible.
  • Use easy-disassembly design
    • Avoid gluing or welding of incompatible material types in the manufacturing process.
    • Reduce using rubber to the maximum extent possible.
    • Design modular parts that can be easily disassembled using common tools (such as a screwdriver)
    • Use snap combination to the maximum extent possible, reduce using screw combination, stick combination and weld combination.
    • Reduce screw categories.
    • Simplify disassembly actions.
    • Avoid redesigning the similar parts, and reduce categories of the mechanical parts.
    • Minimize the size of parts to the maximum extent possible.
    • Avoid using insertion-manufacturing process.
  • Provide a single disassembly instruction for recyclers, upon request.
  • Meet the standards of the WEEE directive for the recycling rate for ASUS's products (not include packaging materials).
  • Meet Energy Star specifications

Green Design Procedure

Based on our own green design procedure and the ASUS design checklist, Research and development (R&D) is also phasing in the design of products that are easy to disassemble so they can be easily reused and recycled, and that have energy-saving features. As well, R&D double-checks that green design attributes are included in each of the design phases.