Winners do it sitting down: Interstuhl PUREis3

It’s all a matter of position. What is often true in many areas of life also applies to office chairs. And because the ergonomics of a chair can only ever be as good as its ability to correctly adjust, the PUREis3 chair from Interstuhl takes care of this fully automatic.

The PUREis3 adjusts automatically to each user, their body and their movements. Complicated, cumbersome mechanics, are completely dispensed with thanks to Interstuhl's Smart Spring technology developed from the results of a five-year research project.

The central component of the Smart Spring system is the seat element, which can be moved in all directions and the curved ribs of the backrest connected to it. Produced from a special polyamide-fibreglass compound, the innovative material supports active sitting and makes automatic adjustments to the user’s sitting posture. These components facilitate a wide radius of movement – even in directions in which other chairs cannot move.

Although numerous studies have shown that sitting for long periods every day is not good for us, it is not necessarily absolutely unhealthy, either. That's why it is important to distinguish between static and active sitting. Static sitting simply means sitting motionless and maintaining the same posture over an extended period of time.

Active sitting, on the other hand, is mobile sitting i.e. switching back and forth between different postures. Shifting the body’s weight automatically engages the muscles of the torso, which helps prevent muscle tension. The circulation system also remains active, which ultimately enhances the sitter’s ability to concentrate. The PUREis3 chair was created for the purpose of making sitting as dynamic as possible. Though it may seem ironic, this compensates, at least in part, for the negative effects of a sedentary lifestyle.

The sophisticated PUREis3 technology was developed by engineer Joachim Brüske and designer Andreas Krob. The central element, the Smart Spring, runs in a striking curve along the backrest down to the chair column and thus also defines the look of the chair. The transparent membrane elements in the back offer a view of the chair's technical inner workings. That the ribs of the backrest are reminiscent of a spinal column is surely no coincidence.

The open mesh structure of the backrest contributes to the impression of lightness and also provides for air circulation. Those who wish to sit a bit less exposed can choose a traditionally upholstered backrest as an alternative. The Smart Spring and the chair column are plain black or white and look as if cast in one piece. Seat and backrests can be selected from a number of variously coloured mesh and upholstery fabrics so that the chair fits effortlessly into a number of architectural office concepts.

Reduced to the essentials, the PUREis3 is light and flexible in both appearance and handling. Due to its lightweight, this all-rounder among office chairs can be moved effortlessly. Its simple handling allows for many different applications, which makes it the ideal choice for architects and outfitters of flexible, modern office interiors.

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