Sound-absorbing window vent SONOSLOT®

self-regulatingwaterproof

is a self-regulating, sound absorbing slotvent kit consisting of an external slotvent, internal slotvent and a plastic sleeve with integrated sound-absorbing baffle in-between. The aluminium external slotvent is self regulating. This keeps the airflow fairly uniform in strong winds and prevents draughts. The external slot vent is perforated and also acts as an insect screen. The noise-damping baffle is standard 70 mm thick and the plastic sleeveis standard 90 mm thick, but both can easily be adapted to suit different window frame depths. The small, narrow and discreet aluminium internal slotvent can be closed completely. When open, it deflects the airflow upwards to prevent direct draughts. The Sono lock is an acoustic damper and self-regulating sliding vent set for assembly on the window profile. The Sono lock has three sections. First, a self-regulating outside sliding vent (type 472) to be mounted on the outside of the window profile. Secondly, a self-regulating inside sliding vent (type 787AK) to be mounted on the inside of the window profile. And thirdly, an acousting-reducing sleeve that must be installed in the fixed sliding opening, in the window profile.