About MAS Certified Green®

What is MAS Certified Green®?

MAS Certified Green® and the green leaf logo are registered trademarks of Materials Analytical Services, LLC (MAS), created so consumers can readily identify interior construction products, furniture, and furnishings designed and manufactured to reduce chemical emissions to the indoor environment. 

Responding to concerns over health effects from exposures to volatile organic compound (VOC) emissions inside buildings, schools, and residences, regulators and industry groups developed standards to reduce the release of hazardous chemicals from construction products and furniture. The Business and Institutional Furniture Manufacturer’s Association (BIFMA) and other organizations have built on these concerns to develop additional testing protocols and standards.​

The MAS Certified Green® Program integrates its own rigorous product testing requirements with those of the California Department of Public Health (CDPH) Standard Method, the BIFMA furniture sustainability standards, and formaldehyde emission testing requirements of the California EPA with the conservative chemical emissions limits referenced by the US Green Building Council LEED and CHPS. There simply is not a more conservative, thorough, or transparent IAQ product-certification program available. The MAS Certified Green® Program is ISO 17065 third-party certification accredited and recognized by LEED, CDPH, BIFMA, CHPS, and GSA as meeting the laboratory testing standards of these organizations.

Green Building is the Future of Building Construction and Interior Furnishings in the United States and Internationally

Transparency is the cornerstone of integrity and non-biased product certification under the MAS Certified Green® Program

Why Choose MAS Certified Green®?

 Architects and specifiers who require MAS Certified® products as part of their projects can feel confident that the products they specify will not contribute to adverse indoor air quality, and consumers can feel comfortable knowing that the MAS Certified Green® products they purchase are contributing to a “healthier indoor environment” for their employees, children, and families. 

Leader in Emissions Testing Development & Compilance

The MAS Certified Green® Program is a leader in emissions testing development and compliance.

Accredited to ISO 17025 & ISO 17065

We are accredited to ISO 17025 for laboratory procedures and ISO 17065 for third-party certification. Our own internal standards combined with ISO accreditation puts MAS at the top.

We Care About Healthier Indoor Environment

Manufacturers who participate in our Program gain a competitive over non-certified manufacturers.

Certification Verification, Complaints and Appeals

For inquiries regarding IAQ product certification, interested consumers and end-users can refer to the active product listings of MAS Certified Green® compliant products in four broad categories: Furniture, Flooring, Construction Materials, and Paints & Finishes by clicking here. For questions regarding products not listed on-line or for previously certified products, requests can be made by contacting us at 770-866-3200 or at [email protected].

For complaints regarding potential fraudulent use of the MAS Certified Green® name and/or mark or product certification appeals or technical inquiries relative to evaluation procedures and rules for granting, maintaining, extending, reducing, suspending, withdrawing or refusing certification can be made by contacting:

Bob Schmitter 
Director of MAS Certified Green®
[email protected]

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