Task seating provides a wide range of ergonomic options to provide optimum comfort and support to be used by many different office chair users. The average employee spends more than nine hours per day at work, seated at their task chair. By selecting the right task chair, users can prevent body ache and injuries, increasing productivity. Ergonomic features for task chairs include seat depth, knee tilt, seat height, back height, lumbar support, and many other adjustments.