Published at Tuesday, November 14th 2017. by Joanne Trujillo in Furniture Office.
For starters, there is the backrest height. You want to try to find one that will allow the user of the chair to provide maximum support to the lower portion of the back. The height will vary from person to person so that backrest itself must be adjustable.
Then we have the seat pan characteristics. You should look for seats that have the following characteristics. The seat pan should have adequate depth and width. The material should be comfortable but offer sufficient support and the seat pan should tilt to alleviate pressure on the back of the thighs.
Then there is chair height adjustment. All office chairs must have this feature as people with longer legs will probably want the chair seat higher off the ground otherwise they may begin to feel their legs cramp up.
As for armrests, they should not interfere with the work that needs to be done but should be comfortable and provide support for the arms. In general if wide movement is needed armrests should be avoided.
Then there is the backrest horizontal movement or the ability to move backward and forward. This is not the same as the tilt feature. This is a feature that actually either increases or decreases the distance between the back of the chair and the seat of the chair. Not all chairs have this feature and while it may cost more it is something to consider as it will provide further comfort on an individual basis.
When purchasing an office chair, the first thing you want to get, if possible, is a trial period. Many distributors will allow a week. That way if there are any problems or if the chair is uncomfortable after long periods of sitting you can return it. You can't possibly know if a chair is going to be comfortable after just a few minutes of sitting.