How do I objectively compare different ergonomic chair models before buying?

Compare the number of adjustments (more is better), BIFMA test certification, foam density or mesh grade, warranty length (10+ years on the mechanism is a good sign), and weight capacity. Ask about the actual seat dimensions: seat width, depth range, and height range — these determine fit more than brand name. Check whether spare parts (cylinders, casters, armrests) are available, which indicates the manufacturer stands behind the product. FindOfficeFurniture.com can compare specific models for you and explain the specs — call 888-719-4960.