Egg crate foam is a polyurethane material with a wavy, uneven surface that increases acoustic absorption. Its peaks and valleys scatter sound waves, reducing reflections and echo. The porous foam structure traps sound energy and converts part of it into heat, lowering noise levels effectively.
This material works best in mid–high frequencies (500Hz–4000Hz), making it suitable for studios, streaming rooms, home theaters, and karaoke rooms. Lightweight, low-cost, and easy to install, egg crate foam is a practical solution for improving room acoustics.