The GREENGUARD Certification Program (formerly known as GREENGUARD Indoor Air Quality Certification) gives assurance that products designed for use in indoor spaces meet strict chemical emissions limits, which contribute to the creation of healthier interiors. Achieving GREENGUARD Certification gives credence to manufacturers’ sustainability claims, backing them with empirical scientific data from an unbiased, third-party organization.

GREENGUARD Gold Certification (formerly known as GREENGUARD Children & Schools Certification) offers stricter certification criteria, considers safety factors to account for sensitive individuals (such as children and the elderly), and ensures that a product is acceptable for use in environments such as schools and healthcare facilities. It is referenced by both The Collaborative for High Performance Schools (CHPS) and the Leadership in Energy and Environmental Design (LEED) Building Rating System.

Simple design and rich product family reaches everywhere.

Simple design and rich product family reaches everywhere.

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Tune features a minimal design and a durable structure, standing as solid proof that much can be accomplished with so little. Tune has a rich product family, suitable for use in all living spaces from homes to training centres, workspaces to social areas.

In addition to wide product group, Tuna also offers 4-leg, 4-leg with castors, and cantilever versions. Colour and material variety of Tune facilitates blending in with the environment.

Leg choices and optional armrest featured in Tune answers needs of different areas; Tune is suitable for homes, waiting rooms, lounges, social areas, training centres, seminar and conference rooms, universities, cafés and restaurants, libraries, workspaces and more.

You can opt to utilize Tune's seating surface with or without upholstery, and backrest can be plastic or net.


Being human is to care for future generations.



The metal parts used in its manufacturing are 100% recyclable. The fabrics used in Tune hold the OEKO-TEX 100 STANDARD, FLAME RETARDANT and RECYCLABLE Certificates. The fabrics have passed the abrasion resistance (Martindale test), light fastness (EN ISO 105-B02), fastness to rubbing (EN ISO 105-X12) and fire resistance tests, which are in conformity with European norms.

Tune has been certificated by GREENGUARD and GREENGUARD Gold.



Tune is manufactured at Numaş A.Ş. facilities, which the holds ISO 14001 Environmental Management System Standard and OHSAS 18001 Health and Safety Management System Standard certificates

Waste Management

At Numaş A.Ş., the waste chemical materials like powder paint, wet paint, thinner, chemical material packaging, phosphate sludge and laser dust are sent to relevant companies for recycling or are disposed in a manner that will not harm the environment.


Tune’s packaging made of 100% recyclable materials is kept to a minimum in order to decrease energy consumption during transportation.


The quality standards of Tune’s manufacturing and material, allow the product to have a long life. International bodies certify its high level of product security.

End of Life

The materials used in the manufacturing of Tune may be re-used or recycled at the end of its product life.

Paul Brooks

Paul Brooks is a British designer who lives in France and works in Germany. Brooks is a reputed expert on office seating and his Anglo-German studio produces design solutions that are focused and conscious for furniture companies and suppliers in Europe and the United Sates.

Please click for more information on Paul Brooks.

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