Sedo-E Designed with Professor Terry Cunniffe Made to fit every body, shape, or size. The Sedo-E defines the standard of ergonomic task chair design,tested to the requirements of AS/NZS 4438:1997 - Height adjustable swivel chairs, tested by Furntech (to AFRDI Level 6 for severe commercial use). How Sedo-E Works For You Designed for good sitting posture and provision of pressure distribution. The seat and backrest contouring of the Sedo E are designed to control the dissipation of contact pressure. This helps avoid asymmetrical sitting pressure and spinal scoliosis. The vertical contouring of the backrest internal foam upholstery takes into account the physiological and anatomical differences between gender. Designed & Built In New Zealand 10 Year Warranty – excluding fabric. Anti-bacterial Foam.