Houston, Jan., 2007—Leading the movement towards cleaner, safer surfacing materials,
Silestone Quartz has been awarded GREENGUARD Indoor Air Quality Certification from the
GREENGUARD Environmental Institute. This Certification means that Silestone Quartz emits
low-to-no-emissions (off gassing) of toxic chemicals into the indoor environment.
Incorporating products such as Silestone Quartz can help reduce the level of harmful indoor
air pollutants in your home. The only countertop with built-in Microban protection, this
Greenguard Certification added to National Sanitation Foundation (NSF) 51 certification for
food preparation areas truly makes Silestone a cleaner safer countertop.

What does Greenguard mean to Silestone?
Studies conducted by the U.S. Environmental Protection agency show that indoor air
pollution can be more than 100 times higher than outdoor pollution levels. As homes becomemore energy efficient, contaminants tend to remain trapped within your living space insteadof being circulated into the outdoor environment. “We spend most of our lives indoors, so it isimportant to choose building materials, such as Silestone Quartz, that do not promote the off-gassing of harmful contaminants into the air we breathe,” said Travis Dupre, Executive Vice President of Sales & Marketing, Cosentino North America. “Silestone is a cleaner, safer product for your home.”
Some of the worst indoor polluters include volatile organic compounds (VOCs), carbon
monoxide, cooking particles and nitrogen oxides. These harmful compounds can contribute to sick building syndrome, a condition characterized by dizziness, nausea and related illnesses. Choosing environmentally friendly products such as Silestone Quartz can greatly reduce the level of toxins and create a safer indoor environment. The unique combination of GREENGUARD Certification, NSF Certification and built-in Microban protection make Silestone Quartz a cleaner, safer surface ideal for all interior applications and preferred by educated homeowners and professionals in the building and design industries.

Exclusive Microban Protection
Silestone Quartz is the only countertop with built-in Microban antimicrobial protection. Microban safely deters the growth of odor-causing bacteria, mold and mildew for cleaner countertops. Microban protection does not protect users from food borne illnesses and is not a substitute for normal cleaning practices.

About the GREENGUARD Environmental Institute
The GREENGUARD Environmental Institute™ (GEI) is an industry-independent, non-profit organization that oversees the GREENGUARD Certification Program. As an ANSI Accredited Standards Developer, GEI establishes acceptable indoor air standards for indoor products, environments, and buildings. GEI’s mission is to improve public health and quality of life through programs that improve indoor air. A GEI Advisory Board consisting of independent volunteers, who are renowned experts in the areas of indoor air quality, public and environmental health, building design and construction, and public policy, provides guidance and leadership to GE. NSF The NSF Mark can be found on millions of consumer, commercial, and industrial products today. Products evaluated and certified by NSF International include bottled water, food equipment, home water treatment products, home appliances, plumbing and faucets, and even pool and spa components. The NSF Mark is your assurance that the product has been tested by one of the most respected independent certification companies in existence today, NSF International.