The Brookvent airvent SM ULTIMA is a high-performance, surface-mounted acoustic window vent designed to provide effective background ventilation while helping reduce external noise ingress. Manufactured from extruded aluminium with a durable polyester powder-coated finish, it combines robust construction, excellent weather resistance and acoustic performance in a practical window ventilation solution.

Designed for projects where both ventilation and noise reduction are important, the SM ULTIMA is available in two principal equivalent area options: 2960 mm² and 5000 mm². The 2960 mm² version offers acoustic attenuation of up to 47 dB Dn,e,w in the open position, while the 5000 mm² version provides a higher airflow capacity with an open-position acoustic rating of 39 dB Dn,e,w.

The ventfeatures graduated airflow control, natural upward air deflection and a wool-pile seal that provides weather resistance up to 1000 Pa. An optional portable rod control is also available, offering additional flexibility where the vent needs to be operated from a more accessible position.

With its combination of acoustic performance, controllable airflow and durable aluminium construction, the SM ULTIMA is an excellent option for residential and commercial projects requiring ventilation in noise-sensitive or exposed locations.

D n,e,w (C;Ctr) – Open position
SM Ultima 2960 mm2 EA47(-1;-2) dB
SM Ultima 5000 mm2 EA39(0;-2) dB

Key Features

  • Up to 47 dB Dn,e W reduction when open
  • 5000mm2 EA & 2960mm2 EA Airflow sizes
  • Graduated opening for airflow control
  • Wool-pile seal: Watertight up to 1000 Pa
  • Natural upward airflow deflection
  • Portable rod control (Optional)
  • Manufactured from extruded aluminium
  • Polyester powder coated
  • 10 year Guarantee

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