2) Ergonomic desk chair should have backrest which help user to relax his/her body and to keep proper lumber support to their lower backs working in long hours. It should be adjustable forward and backward as well as up and down.
3) Seat pan of desk chair supports to distribute user's weight. It is important to notice whether the seat pan complete with cushion or padding. It gives user to more comfortable seating. The front part of the seat should slope down slightly and allow a fist size gap between the back of the knees and the front edge of the seat pan to reduce pressure at the back of the thighs.
4) Casters at the based of ergonomic desk chair offers to user to rotate his/her position while working without standing up. When you are selecting a chair consider whether it complete with castors or not.
5) Ergonomic desk chair also should have adjustable armrest. It helps user to keep his or her elbow area in it and it helps to reduce pressure of the shoulders and neck. Armrest should be at least 2 inches wide and should be made of soft material.
6) Footrest of ergonomic desk chair should be adjustable and support both feet. Keep feet flat and firm on the footrest.