This pendant office luminaire features a novel operation that shapes the healthy atmosphere of a workplace with its acoustic capabilities and homogeneous illumination of a high-quality LED light that minimizes fatigue on the eyes. The glare-free pendant luminaire complies with demanding technical and ergonomic requirements, suitable for use in an open office space or conference room. Donut’s body projects a formal simplicity and conveys a high sense of elegance. The glowing diffuser surface with a micro prismatic bottom complements the design. Following a sustainable design principle, Donut is made of ecoPET - synthetic felt panels manufactured from recycled PET bottles. ecoPET is non-flammable and is characterized by high durability and easy maintenance. It is created from recycled material and is possible to be recycled again. The product is long-lasting and maintenance-free.