The Ergohuman has been created specifically for those who are in office chairs for prolonged durations and require 'Intensive Use Seating' to keep them comfortable. Visuals structure and function all direct this ergonomic chair to utilize a synchro tilt mechanism with infinite lock sliding seat functionality pneumatic height adjustment an automatic lumbar support system height and angle adjustable arms and headrest all in one very special and advanced ergonomic chair. Using this ingenious simple single lever control to control the three most frequently used chair functions - seat height seat depth and back tilt can all be operated from one single point of contact.