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Products for the acoustic insulation of AHUs

Fonois provides modular systems to acoustically insulate AHUs (Air Handling Units) while maintaining efficiency, acoustic comfort and seamless integration. Soundproofing casings, duct-mounted acoustic silencers, noise barriers, and aphonic grilles enable comprehensive acoustic treatment, even in the most sensitive environments.

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Why choose acoustic insulation solutions for AHUs

The Air Handling Unit (AHU) is a device designed for the treatment and circulation of air within indoor environments. It is commonly used in a wide range of settings, including:

  • Conference rooms
  • Gymnasiums
  • Cinemas
  • Swimming pools
  • Shopping malls
  • Trade fair venues
  • Restaurants

Air Handling Units (AHUs) can produce significant noise due to high-flow, high static pressure fans, turbulent airflows, mechanical vibrations, and resonance within ductwork or metal structures. Silenced models are typically fitted with insulated casings. However, these may be insufficient in sensitive environments such as healthcare facilities and schools where noise thresholds are particularly stringent, as outlined in Framework Law 477/95 (Legge Quadro 477/95).

To address this issue, it is essential to manage the unit’s acoustic characteristics effectively, with particular attention to vibration isolation and additional soundproofing measures, such as casings, barriers, or acoustic silencers.

Reduce noise emissions with Fonois silencer systems

To achieve truly effective results, it is essential to implement dedicated soundproofing systems for AHUs capable of attenuating noise both at its source and along the ductwork. Thanks to Slim Hurdle™ technology, Fonois acoustic silencers deliver high attenuation performance with up to 70% lower pressure drop compared to conventional rockwool-baffle models. This feature is crucial for maintaining AHU performance and enables system designers to avoid oversizing the system to preserve correct airflow rates.

According to our field tests, replacing a conventional system, consisting of rockwool silencers, with a Fonois silencer can reduce machine energy use by up to 15%.

Our field tests show that simply replacing a conventional soundproofing system, using rockwool silencers, with a Fonois silencer can reduce machine energy consumption by up to 15%.