A special function of the Air-Box valve is the possibility to quickly install ventilation without milling the window profile. 40 m3 of fresh air enters the room within 1 hour through the ventilation valve. AIR-BOX has mechanical control, in case of high wind, the valve can be closed. In order to obtain the desired air semen effect, it is recommended to install 1 AIRBOX valve in each room. Mounted on top of the window sash.
ADVANTAGES OF AIR-BOX
optimal air circulation at normal air pressure;
minimum energy loss;
constant air change;
there is no drafts, even in strong winds;
excellent heat and sound insulation;
works without sound;
prevents the formation of mold, fogging of windows.