Washable and resistant to disinfectant. GMP and cleanroom compatible. Can be used in laboratories with safety classification S1 to S3.’Suitable for laboratories and all hygiene-critical environments particularly health care, universities,biotechnology, chemistry and pharmaceuticals.Synthetic Backrest with 3D-Flex function. The backrest adapts to the movements of the user and therefore follows the upper body when leaning back or turning sideways.Seat height infinitely adjustable between 450 - 650 mm.Load dependant braked soft double castors for hard floors. The chair will not roll away when unused which minimises the risk for accidents.