A good work chair can support the body in a dynamic posture, while also being appropriate to the task or activity performed. This means it is easily adjustable into positions that support the spine and keep the body in a neutral position.

• Check that the adjustability range can accommodate the workers' body sizes.
• Select a chair that allows the worker to adjust the height and depth of the seat as well as the height and tilt of the backrest. An adjustable seat tilt is also desirable.
• Select a chair with:
  • a backrest that is shaped to support the lower back and does not give way;
  • a seat height that does not compress the underside of the thighs;
  • a front edge curved downwards;
  • non-slip, breathable fabric on the seat;
  • stable base (5 legs);
  • with arm rests (where practical).
• Use a footrest when feet cannot rest on the floor.

• Ensure that the chair has a wheel locking mechanism.
• Use a swivel chair with an adjustable seat height.
• Adjust workstation to the proper height.
• Adjust the chair seat height between 25 to 35 cm (about 10 to 14 in.) below the work surface.
• Use a footrest with a height of 40 to 50 cm (about 16 to 20 in.)