What adjustment features should I expect on a fully ergonomic office chair?

A fully equipped ergonomic chair includes seven core adjustments: pneumatic seat height (typically a 15–21 inch range), seat depth slide for thigh length, seat tilt angle, backrest height, backrest recline angle, and lumbar support with both height and depth control — plus armrest adjustments covering height, width, pivot, and depth. Some premium models add a headrest as an eighth adjustment point. When a product page lists only a few of these, it's a consumer-grade chair wearing ergonomic marketing language. At FindOfficeFurniture.com, each chair's spec sheet lists every available adjustment — call 888-719-4960 to compare models.