• Broadband and Tonal Noise Reduction
  Noise reduction of  over a wide range of frequencies provides consistent performance across a wide range of operational conditions. 

• High-Temperature Performance
  Capable of withstanding continuous exposure to temperatures up to 1,600°F (870°C).  

Materials, such as FeCrAlY, provide oxidation resistance and thermal stability, making it well-suited for integration near high-heat sources such as APU inlets and exhaust systems, where conventional materials may degrade. 

• Reduce Noise Through Diffusion
  FELTMETAL™ acoustic media effectively reduces noise resulting from high pressure gas being exhausted directly through the sheet. The controlled porosity of the media enables gas to be expanded gradually, thereby reducing turbulence and the amount of noise generated. 

• Longue durée de vie
  Excellent erosion and corrosion resistance – maintains acoustic performance over time. 

• Consistent Acoustic Performance
  A low Non-Linearity Factor (NLF), FELTMETAL™ ensures stable performance across varying sound pressure levels. Unlike perforated metals or wire mesh, it delivers predictable, almost linear acoustic behavior. 

Non-linearity factor (NLF) is the ratio of media flow resistance at a high velocity (such as 200 cm/sec) to the flow resistance at 20 cm/sec. An ideal linear material would have a NLF=1. Linear materials are desired because sound pressure levels change in many applications, and a relatively linear responding material provides optimum acoustics performance over a range of sound pressures and intensities. In comparison, high NLF materials, such as perorated material or wire screen are drastically influenced by these changes, leading to reduced efficiency. 

• Easy to Clean
  FELTMETAL™ is fully cleanable using methods like steam cleaning, solvent degreasing, ultrasonic cleaning, etc., making it suitable for sterile sensitive environments.  

• Optimized Acoustic Impedance
  Achieved through acoustic impedance matching.