If you are looking for a higher quality or specification of office chair, you probably want office chairs that have been designed ergonomically, of high quality construction and incorporates the very best features in modern quality ergonomic office chairs.
Here's a summary of the five key features
1. Seat Height Adjustment (gas lift)
Almost all office chairs nowadays have gas lift height adjustment. A lot of office chairs typically have a gas lift that is fitted with a outer set of black plastic tubular sleeves (Telescope). As you lower the chair each black plastic sleeves inside the other to conceal the metal gas lift.
When you raise the chair, the black plastic sleeves should rise up too and conceal the extended gas lift. On some chairs, the chair manufacturer tries to make a feature of the gas lift by finishing the outer sleeve of the gas lift to match the chair's 5 star base. Others do not use plastic sleeves at all. If necessary you may want to consider changing the standard gas lift for an upgraded weight or height capacity to suit you unique height or weight.
2. Back Height Adjustment
Quality chairs are designed with the chair's back height adjustment concealed on the inside of the back stem and operates by moving the chair back up on a concealed ratchet system within the back itself. Another popular back height adjustment is by a built in button in the chair's back, you simply press the button or buttons and raise and lower the seat's back to suit your needs.
3. Seat Depth Adjustment
To adjust the depth of your office seat is important to ensure you are ergonomically seated in relation to your leg length. A form of sliding seat mechanism can achieve this by lifting a lever and using your body's weight to move the seat pan to the most comfortable position for yourself. Others adjust by means of a knurled knob which moves the seat pan in and out. Some other chair suppliers provide the adjustment by moving the chair's back forwards or backwards.
4. Arm Height Adjustment
Some quality ergonomic office chairs come in a variety of different forms. The most basic is by means of a knurled knob. You loosen the knob and move the arms to where you want them and lock them off. Some other chairs use push button arm height adjusters. You presses the button in moves the arms to the desired height and releases the button to lock the arm height position. There are also another type of adjuster by means of a radio volume style knob that moves and lowers the arm when turned, or the ratchet idea where you lift the arm to ratchet up or down to the desired height.
Armpad on top of the armrest can be adjsuted in, out, or pivot.
A number of arm mechanisms can also be angled outwards to enable the user to get in closer to their desk. Armrests are generally recommanded by ergonomists. However, some chairs even swing the armrests completely out of the way such as the HAG.
5. Adjustable Tilt Tension
Tilt tension adjustment on ergonomic office chairs is commonly by turnning large knurled knob fitted centrally under the chair mechanism. You simply turns it in one direction to increase the tension on the back's resistance and in the opposite direction to lower the tension on the back's resistance. This knob can generally be adjusted while still seated. Another tilt tension mechanism adjustment has a sliding knob control that the user moves to a choice of 3 or 4 positions. This can't normally be altered whilst sitting in the office chair. You need to crouch down to access it.
A safety feature can be found on our Coolman's mesh. The back won't tilt back until you lean back against the back and your weight against the back release the safety feature and the back return to the postion where you want it smoothly.
There are even 'self adjusting' chairs where the user leans right back into the chair and the office chair tension mechanism assesses the user's weight and sets the tension accordingly. This is an easy method of adjustment. However, the downside is that you can't override it if you feel it isn't quite how you want it.
So, hopefully the above summarized critical features will benefit on your next office purchase.
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