When you’re shopping for paint, furniture, flooring or other products for your home, you’ve probably seen terms like “low VOC,” “zero VOC” or “GREENGUARD Gold Certified” on the label. But what do those claims actually mean? 

With indoor air quality becoming a bigger consideration for homeowners, it’s worth looking beyond marketing language and understanding how products are evaluated. That’s where third-party certifications like GREENGUARD Gold come in. 

GREENGUARD Gold certification is an independently verified standard for low chemical emissions. Rather than relying solely on what a manufacturer says is in a product, the certification evaluates what a product actually emits into the air under controlled testing conditions. UL Solutions, which operates the GREENGUARD certification program, notes that a product’s low VOC content does not necessarily mean that it will emit low levels of VOCs. 

What Is a GREENGUARD Gold Certification? 

GREENGUARD Gold is a third-party certification that verifies a product meets stringent limits for chemical emissions into indoor air. The certification is administered by UL Solutions and is designed to help identify products that emit low levels of chemicals that can affect indoor air quality. GREENGUARD Gold goes beyond basic GREENGUARD requirements by setting lower emission limits and adding health-based criteria for additional chemicals. In other words, it’s not simply a statement from a brand that a product is “clean” or “eco-friendly.” It’s a certification based on standardized testing and established emissions limits. 

Who Issues the Certification? 

GREENGUARD is operated and issued by UL Solutions, an independent global safety science organization. UL Solutions oversees the testing and certification process and establishes the criteria products must meet to earn the GREENGUARD or GREENGUARD Gold mark. That independent oversight is an important part of the certification. It means manufacturers aren’t simply setting their own definition of what “low emitting” means. 

What Products Can Be GREENGUARD Gold Certified? 

GREENGUARD certification applies to a wide range of products that can contribute to indoor chemical emissions, including furniture, flooring, building materials, mattresses, interior products, cleaning products, and children and baby products. Paint is another example. Our interior paint is GREENGUARD Gold certified, in addition to being formulated as a zero-VOC paint. 

Why Third-Party Certification Matters 

Words like “natural,” “non-toxic,” “eco-friendly” and even “low VOC” can be difficult for shoppers to evaluate on their own. They may describe a product characteristic, but they don’t necessarily tell you how much of a chemical makes its way into the air during or after use. That distinction matters because VOC content and VOC emissions aren’t the same thing. 

A product can contain a relatively low amount of VOCs without necessarily having correspondingly low emissions. UL Solutions specifically points out that low VOC content does not automatically indicate low VOC emissions. 

GREENGUARD Gold focuses on emissions. Instead of only asking what chemicals are present in a product, the certification process evaluates what the product releases into indoor air and whether those emissions stay below established limits. It also means shoppers have an established standard they can look for rather than having to interpret every manufacturer’s individual environmental claims. 

What Does GREENGUARD Gold Actually Test For? 

GREENGUARD Gold evaluates a product’s emissions against stringent limits for hundreds of individual chemicals. For paint, our interior paint formulas are tested for more than 360 VOCs and other hazardous chemicals as part of the GREENGUARD Gold certification process. 

Testing for VOCs and Other Chemical Emissions 

Volatile organic compounds, or VOCs, are chemicals that can evaporate into the air. They’re found in many everyday products and materials used indoors. Some VOCs can cause short-term symptoms when concentrations are high enough, including headaches, dizziness, and irritation of the eyes, nose, or throat. Certain VOCs are also associated with longer-term health concerns. 

That’s why simply looking for a “zero VOC” or “low VOC” statement doesn’t tell the whole story. A more complete picture considers the product’s overall chemical emissions. GREENGUARD Gold sets limits for more than 360 VOCs as well as total chemical emissions, with additional health-based criteria compared with the standard GREENGUARD certification. 

How Environmental Chamber Testing Works 

So how do you test something as difficult to measure as what a product releases into the air? 

GREENGUARD Gold uses dynamic environmental chamber testing. The product is placed in a controlled chamber where airflow and environmental conditions are used to model how emissions behave in an indoor space. 

Our testing process measures chemical and particle emissions at intervals after application. The airflow is modeled to simulate product use in a typical home environment, and the paint must meet applicable emission limits within the specified testing period. This approach is important because it evaluates emissions rather than simply analyzing a product’s ingredients on paper. 

Real-World Indoor Air Quality Standards 

GREENGUARD Gold is also tied to established indoor air quality criteria. In addition to its own requirements, products seeking Gold certification must comply with the California Department of Public Health’s Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers, commonly known as California Section 01350. The result is a certification built around how a product contributes to indoor air quality, not just what claims appear on its packaging. 

GREENGUARD vs GREENGUARD Gold: What's the Difference? 

Both certifications address chemical emissions, but GREENGUARD Gold has more stringent requirements. 

Why GREENGUARD Gold Has Stricter Requirements 

GREENGUARD Gold sets lower allowable VOC emission levels than the standard GREENGUARD certification and adds health-based criteria for additional chemicals. It also includes requirements designed for environments where occupants may be particularly sensitive to indoor air pollutants. That makes the Gold designation particularly relevant when choosing products for spaces such as homes, nurseries, schools and healthcare environments. 

Designed for Sensitive Populations 

One of the defining features of GREENGUARD Gold is its focus on sensitive populations. The standard is designed to provide greater protection for environments used by groups that may be more vulnerable to chemical emissions, including children and other sensitive occupants. UL Solutions specifically identifies settings such as nurseries, schools, healthcare facilities and homes where children’s safety is a priority. 

That doesn’t mean a GREENGUARD Gold certified product is completely free of chemicals or that it eliminates every possible indoor air quality concern. Rather, it means the product has met a rigorous set of limits for chemical emissions. 

What GREENGUARD Gold Means for Your Home 

For homeowners, a certification can sound pretty technical. What does it actually mean when you’re standing in your living room with a paint roller? 

Lower Chemical Emissions From Day One 

GREENGUARD Gold certification means a product has been evaluated for chemical emissions and meets stringent limits. For paint, that can be especially relevant during and shortly after a painting project, when a newly applied product is contributing to the indoor environment. Choosing a low-emitting product can be one consideration when you’re thinking about indoor air quality alongside ventilation and other good painting practices. 

Better for Nurseries, Bedrooms, Schools and Other High-Occupancy Spaces 

The stricter Gold standard was specifically developed with sensitive environments in mind. That makes the certification worth looking for when you’re choosing products for spaces where people spend significant amounts of time, including bedrooms, nurseries, playrooms and other frequently occupied areas. It can also be useful for households that simply want to be more thoughtful about the materials they bring indoors. For a painting project, this can be particularly reassuring when the room needs to be put back into use soon after painting. 

Annual Certification and Ongoing Compliance 

A certification isn’t intended to be a one-and-done claim. UL GREENGUARD certified products are subject to ongoing review and testing for continued compliance. Our paint undergoes rigorous testing annually to maintain its GREENGUARD Gold certification. That ongoing process gives the certification more meaning than a static badge that a product earned once and can continue displaying indefinitely. 

Common Questions About GREENGUARD Gold Certification 

Does GREENGUARD Gold Mean No Formaldehyde? 

No. GREENGUARD Gold certification does not mean a product contains absolutely no formaldehyde or other chemicals. Instead, it means the product has been evaluated against established chemical emission limits, including limits for specific substances covered by the standard. The certification is about controlling emissions to stringent levels, not claiming that every chemical is completely absent. It’s an important distinction: GREENGUARD Gold means low chemical emissions, not chemical-free. 

Do You Need GREENGUARD Gold Certified Products? 

There’s no single certification that every homeowner needs for every product in their home. But if indoor air quality is an important consideration for you, looking for credible third-party certifications can make it easier to compare products. GREENGUARD Gold can be especially relevant for products used in nurseries, bedrooms, children’s spaces and other areas where people spend a lot of time. As with any home project, ventilation and following the manufacturer’s application and safety instructions are also important. 

What's Better, OEKO-TEX or GREENGUARD Gold? 

These certifications evaluate different things, so they aren’t really interchangeable. OEKO-TEX certifications are primarily associated with textiles, leather and other materials and products, with standards that can address substances that may be harmful to people or the environment. 

GREENGUARD Gold, on the other hand, specifically focuses on chemical emissions into indoor air. That makes it particularly relevant when you’re evaluating products such as paint, furniture, flooring and other interior materials. Rather than asking which certification is universally “better,” look for the certification that applies to the type of product you’re buying and the concern you’re trying to address. 

Choosing GREENGUARD Gold Certified Paint With Confidence 

A paint label can tell you a lot, but knowing what the claims actually mean can tell you even more. 

When evaluating paint, look beyond broad terms like “eco-friendly” or “low VOC.” Consider whether the product has been independently tested for chemical emissions, what standard it meets and whether that certification is maintained over time. 

GREENGUARD Gold gives homeowners a recognizable benchmark: independent testing, stringent emissions limits and criteria designed with sensitive indoor environments in mind. 

Our paint is GREENGUARD Gold certified and tested for more than 360 VOCs and hazardous chemicals as part of the certification process. It’s also formulated with zero VOC colorants, so adding color doesn’t introduce VOCs to the paint. Ultimately, certification isn’t about making a room “chemical-free.” It’s about having better information when you choose the products that become part of your home and knowing that a third party has put those products through a rigorous emissions standard.