Tilt with Adjustable Tilt Tension
Once the tilt is positioned to unlock the tilt or reclines back a few degrees more relieving pressure from the pin or lock bar. Tilt lock is applied to lock tilt totally if the chair is in the upright position.
Lumbar Support Adjustment
These chairs are extremely helpful for people who spend the majority of their work day at a desk. People who perform most of their tasks on a computer can especially benefit from chairs that provide proper support for their backs.
The lumbar support should fit right in the natural curve of your spine, typically at the small of your back directly above your belt line. This adjustment is often built into the chair so you can adjust both the height of the chair back and the lumbar support at the same time. In some chairs, it's an independent adjustment.
Seat Pan Depth Adjustment
The synchronous mechanism (synchro tilt) combines a movement of the backrest and a corresponding smaller movement of the seat. The movement of the backrest is thereby larger than the movement of the seat. This allows the user to recline while keeping their seat relatively level to the floor instead of the traditional “rocking chair” type recline.
Armrest height is one of the most common ergonomic chair adjustments. The armrest adjustment can help with upper back. This is usually controlled by a push of a button or a simple knob, allowing to tilt the armrests inwards or outwards to varying degrees until you find the position which adjusted to level of comfort. The chairs armrest are adjustable in 1D, 2D, 3and 4D which allows sitting close and working with arms relaxed.
Headrest adjustments provide support and comfort to the head and neck while in a reclined position, often keeping the head at a near-constant eye level with your computer monitor. The headrests are usually adjustable in height and angel to help head centered on the neck, not leaning forward.