☿Back-rest & Lumbar Height, Tilt Angle, and The Flexible     Tilt Tension Adjustment
☿The Automatic Flexibility Angle of Lumbar Adjustment
☿Arm-rest Height Adjustment
☿Arm-pad Angle Adjustment
☿Seat Height and Seat Depth Adjustment

Backrest Height Adjustment
Sitting on the chair, pressing and pushing up the backrest height adjustment mechanism, one can adjust the backrest up or down. There is four-position and 6cm adjustable.
It is the best suitable position that the 3-4 vertebra is supported on the lumbar-rest position. And with the automatic flexibility lumbar support design . One’s lumbar can be supported all the time, even if you work without leaning against the backrest.
Backrest Tilt Angle Adjustment
Sitting on the chair, pushing the backrest angle adjust button forward to the end, one can adjust the backrest angle by reclining. The backrest would be fixed by returning back the button. There is three-position and 15° adjustable.
It can be adjusted the angle for your most comfort. As to reduce the pressure on spine, one can adjust the angle in his need. Another health postion is that one can keep the backrest unclocked and recline at random with adjusting the proper tiit tension.
Backrest Flexible Tilt Tension Adjustment
Swivelling clockwise or anti-clockwise the backrest flexible tilt tension adjust button, one can enhance or reduce the tilt tension.
Ergohuman was designed by using the synchro mechnism, according to the priciple of ergonomics. When the back tilt 2.7° , the seat will be up 1°. The design not only make the user feel more comfortable but also reduce the sitting posture harm.
Armrest Height Adjustment
Pulling up the two-side armrest height adjust button. One can adjust the height up or down. There is ten-position and 10cm adjustable.
It is the most proper posture, which one put the arm on the armrest naturally, keep the angle 90° and the armrest surface (2.5cm) higher than the elbow.
Arm-pad Angle Adjustment
Putting the elbow on the armrest, holding the head of the arm-pad, one can adjust the angle outward or inward. There is three-position and 16° adjustable.
It is the available method to lighten the harm to the hand, that one puts the elbow on the armrest naturally according to the working need, and avoid working without elbow support.
Seat Height Adjustment
Sitting on the chair, pushing the seat height adjust button backward to the end and keeping the hold, one can make the seat up or down. The seat height would be fixed without pushed the button.
It is the best height when the knee angle is a little less than 90° and the foot step on the level. There is much harmful to spine when the height of seat is incorrect..
Seat Depth Adjustment
Pushing the seat depth adjust button backward to the end, moving with the haunch power, one can change the seat depth. But, do not hold the armrest at the same time. When pushing back the button, the depth could be fixed. There is six-position and 6cm adjustable.
It is the best depth when the haunch is full on the seat, the waist is crutched completely and the inturn of the knee can not touch the seat brim.
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