Desk chairs have norms, so they meet the health and safety standard legislation. This is important for the wellbeing of employees. NPR 1813 is one of those Dutch norms. This health and safety standard offers more adjustability and larger dimensions than NEN 1335. If you buy a desk chair which meets the NPR 1813 norm, you have an active an ergonomic posture. This reduces the chance of physical aches if you work while sitting down for hours a day. Whether you work at the office or at home, you need a desk chair which adjusts to your body length.