SOUND TRAP VELCO FOR VENTILATION WINDOW

The sound trap to be mounted on the surface of a wooden ventilation grille is an effective way to reduce noise transmitted into interior spaces through the replacement air vent. The sound trap made from non-condensing plastic material is internally coated with an excellent sound-absorbing acoustic insulation material (recycled polyester foam, PUR). Features - Includes an additional attenuator permanently glued to the surface of the ventilation grille - Compatible with the Velco VTR replacement air vent installed on the ventilation grille - Width 170 mm, height 400 mm, depth 50 mm - Classification according to SFS-EN ISO 717-1: Dn,e,w 49 dB - Reduces noise with minimal pressure loss - Easy to install even as a retrofit Packaging includes - Sound trap - Additional attenuator - Mounting screws - Installation instructions This product description is an automated translation of the original Finnish description.