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Sources and Methodology

Official sources and the research method used for office-chair, ergonomics, safety, and advertising guidance.

Reviewed August 4, 2026General educational information

The site uses a measurement-first method: define the task, measure the user-workstation relationship, compare published ranges, review mechanisms and service evidence, then test realistic work.

Core official references

Method limits

Public sources do not replace an individual assessment. Product dimensions and certifications must be confirmed for the exact model and configuration.