SF Sound Attenuator internal SF Sound Attenuator external Can be used on PVCu, wood and aluminium windows The SF Sound Attenuator Ventilator is a compact ventilator for machined slots, and has excellent sound attenuation properties compared with other “acoustic” products. The SF Sound Attenuator is available in a number of combinations based on three sizes of inner (ventilator) and outer (canopy). The product is a cost-effective method of reducing incoming noise where conventional slot ventilators are unable to assist with acoustic problems. The SF Sound Attenuator comes fitted with a Triton SF Ventilator and/or SF canopy, and matches the standard SF, Trimvent Select and Select Xtra slot size. Features and benefits ■Cost-effective sound-attenuating ven- tilator ■Independently tested by Sound Research Laboratories in accordance with BSEN20140-10:1992, ISO14010:1991 Combinations can be chosen according to sound attenuation requirements and aesthetic preference. ■Ventilation unit available in three sizes: V25, V50, V75, with three available sizes of canopy unit: C25, C50, C75 ■Provides up to 40 D (n,e,w) attenuation, depending on chosen combination ■Suitable for use in private, public and commercial installations ■Ideal for retrofitting over an existing slot ■Available in a range of combinations to suit different acoustic specifications ■Fits standard SF, Trimvent Select or Trimvent Select Xtra slot size ■Supplied with ready-mounted SF ventilator and/or SF canopy ■Compression closing action ■High-performance gasket on the ventilator improves sealing in adverse conditions ■ Screw covers www.creb.dk
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