PET (polyethylene terephthalate) acoustic panels are made from recycled plastic bottles, transformed into a dense, durable felt material. They are popular because they combine sustainability, versatility, and excellent sound absorption. PET panels come in a wide variety of colours and finishes, and can be cut into custom shapes or printed with graphics, making them both functional and decorative.

Resonics partners with leading PET manufacturers such as Autex and Baux, giving our clients access to the highest-quality, independently tested products on the market.

PET acoustic panels absorb sound waves, reducing noise and improving the overall acoustics of a space. Their porous structure allows sound to enter, where the energy is converted into a small amount of heat through friction, helping to minimise echo and reverberation.

The number of panels required depends on the size, shape, and materials in the room, as well as the intended use. A small meeting room might need as few as 6–8 wall panels to one wall, while an open-plan office could require dozens of ceiling baffles or rafts. The aim is to reduce the reverberation time to a comfortable level, not to cover every surface.

Walls: Good practise is to apply panelling from skirting to ceiling to 2no. perpendicular walls to reduce flutter echoes.

Ceilings: In accordance with new BS ISO 22955:2021 guidelines, the ceiling is the most important treatment area, and should feature approximately 50-60% Class A coverage in open plan office spaces.

Resonics provides a free acoustic survey and CAD layout to determine exactly how many panels you need and where they should go. This ensures you invest only in what’s necessary to achieve measurable results.

Yes, PET acoustic panels are low-maintenance and easy to clean. A quick wipe with a damp cloth and mild soap is usually enough to keep them looking their best. Regular cleaning helps maintain both their appearance and acoustic performance over time. For tougher stains, fabric or furniture cleaner can be used, but avoid abrasives or vigorous scrubbing, as this may cause damage. Promptly addressing spills and marks will help prevent costly repairs and extend the lifespan of the panels.

Not usually. While it’s tempting to think “the more panels the better”, effective acoustic design is about strategic placement rather than full coverage. The goal is to control reverberation time and echo — once you reach the optimal level, adding more panels won’t improve performance and can make a room sound “dead”.

Our consultants calculate exactly how much treatment is needed based on room size, materials, and usage. Dependent on the existing room surfaces, often 15–25% of the wall and ceiling surfaces is enough. This allows you to integrate acoustic treatment without compromising aesthetics, using panels as design features, artwork, or ceiling elements.