Which of the following factors should be considered in mitigation design features for every job?

When designing mitigation features for radon reduction, practicality and long-term cost are crucial factors to consider. The effectiveness of a mitigation system is not solely determined by its performance during installation but also by how well it functions over time and the economic feasibility of maintaining it. A system that is practical will fit seamlessly within the existing structure, incorporating solutions that advocate for efficiency without unnecessary complexity.

Additionally, considering long-term costs ensures that the solution remains viable without imposing an ongoing financial burden on the homeowner. This approach promotes the installation of systems that are not only effective in reducing radon levels but also sustainable and affordable in the long run, ultimately leading to higher client satisfaction and better health outcomes.

While speed of installation, the latest technology, and client preferences are important factors in certain contexts, they do not encompass the broader implications of practicality and cost-effectiveness that resonate with successful mitigation designs in the long term.