An employer shall ensure that -
(a) workrooms have sufficient surface area, height and air space to allow employees to perform their work without risk to their safety, health or welfare, and
(b) the dimensions of the free unoccupied area at a workstation are calculated to allow employees sufficient freedom of movement to perform their work and, where this is not possible for reasons specific to the workstation, the employee is provided with sufficient freedom of movement near his or her workstation.