The EDGE M EVO has 4 wheels controlled by an electronic braking system. The ergonomic and safe wheel locking system improves the positioning and movement of the chair. The wheels can be easily and ergonomically locked and released using buttons on the back of the chair. The directional locking wheel makes it easy for the professional to move the chair over long distances. A motion sensor attached to the wheels allows the chair to automatically lock after a 30 sec. stop. The chair is controlled by 3 linear actuators and a lifting column using a multi-function and wireless foot controller. The upholstery comprises of 5 fully removable padded sections for easy cleaning and disinfection, made of non-deformable high-density foam and coated with a bielastic, abrasion-resistant, flame-resistant and antimicrobial coating, available in a choice of 80 different colours and 8 different fabric textures. The entire structure is covered with an innovative and modern ABS housing. All surfaces can be easily cleaned and disinfected.