What Does Greenwashing Mean in Acoustic Materials?

Greenwashing refers to the practice of presenting products as environmentally responsible without providing verifiable technical evidence. Terms such as “eco,” “natural” or “sustainable” are often used without clarifying composition, recycled content or certifications.

For architects and interior designers, this lack of clarity creates risk. Without reliable data, it becomes difficult to evaluate materials objectively within a professional project.

What is really happening in the market

We constantly encounter acoustic materials that are presented as sustainable, but when you analyze in detail what is behind them, the reality changes quite a bit.

In many cases:

• There are no verifiable certifications
• Unclear percentages of recycled material are used
• Or they simply rely on generic messages without any technical backing

This not only creates confusion, but also makes it very difficult to compare products objectively.

Why It's Important to Go Beyond Rhetoric

When we talk about sustainability in acoustic materials, it shouldn't be a matter of marketing, but of data.

And that data must be supported by recognized certifications.

For example:

• Emissions certifications, such as GREENGUARD Gold, which ensure that the material is safe for use in demanding indoor environments such as offices or schools
• Certifications such as OEKO-TEX, which guarantee that the material is free of harmful substances
• Standards such as the GRS (Global Recycled Standard), which actually verify the recycled content
• Or documents such as the EPD, which analyze a product's environmental impact throughout its entire life cycle

Without this kind of backing, any claim of sustainability remains just that: a claim.

How to detect if an acoustic material is truly sustainable

There's a pretty simple way to filter out the noise:

1. Do you have certifications, or is it just talk?

If there are no verifiable documents, be distrustful.

2. Is the recycled content certified?

It's one thing to say "recycled" and quite another to be able to prove it.

3. Have the emissions been measured?

This is especially important in indoor spaces.

4. Is there an EPD?

It is one of the few documents that truly analyzes the product's global impact.

And beyond sustainability: performance still matters

Another point that is often overlooked is that sustainability and performance must go hand in hand.

An acoustic material not only has to be environmentally responsible, it also has to be effective.

In this regard, factors such as fire performance remain critical in any project. For example, classifications such as B-s2,d0 under European standards ensure a high level of safety in interior applications

A Final Thought

Sustainability in acoustic materials should not be based on what is said, but on what can be proven.

And that's where well-developed products really stand out from those that are simply following a trend.