How can you tell if a chair is actually ergonomic?

A genuinely ergonomic chair gives you precise independent control across at least five adjustment points — seat height, seat depth, backrest height and angle, lumbar support height and depth, and armrest height — so you can dial it in to your specific body rather than hoping a "medium" setting fits. Premium models add armrest angle, headrest position, and seat tilt tension on top of that. If a chair only adjusts height, it's a task chair with ergonomic marketing on the box. FindOfficeFurniture.com lists every adjustment point for each chair in the catalog — call 888-719-4960 for help narrowing it down.