Two stage acoustic attenuator of the Akustik air intake combined with Higroster controller effectively muffles sounds up to 43 dB while maintaining the nominal air flow of 28,4 m3/h.
Akustik Higroster is a two stage trickle vent controlled with both pressure difference and air humidity. Before the controlled air flow reaches your interiors, it first passes through a pressure controlled air intake and then through a humidity-controlled throttle. Throttle lever enables also manual control.
Listen to the silence
Acoustic air intake designed to be virtually noiseless. It muffles almost all external noise, letting only the air in, much more air. To achieve this result we had to use every inch inside the Akustik air intake. We designed an attenuator with a precise profile, which perfectly fits the aluminium housing.
Less is more
A unique combination of high flow and perfect acoustic attenuation makes it possible to use less trickle vents, while maintaining optimum operation of the ventilation. Less trickle vents means better acoustic attenuation and higher savings. That’s simple!
up to 43 dB when open
with humidity control
Ventair Higroster Akustik
Nominal flow ∆p = 10 Pa
- trickle vent open: 28,4 m3/h
trickle vent closed: 7,1 m3/h
Nominal flow ∆p = 20 Pa
- trickle vent open: 41,4 m3/h
trickle vent closed: 10,1 m3/h
(air intake placed 15 mm in the insulation layer)
- trickle vent open: Dn,e,w = 43 (0; -2) dB
trickle vent closed: Dn,e,w = 44 (-1; -3) dB
- trickle vent open: Dn,e,w = 43 (-1; -3) dB
trickle vent closed: Dn,e,w = 43 (-1; -2) dB
two stage automated with air humidity
and pressure difference, manual
Resistance to penetration by rainwater
Resistance to condensation
RH = 39% at Tout./Tin. = -20°C / +20°C
Range of application
wood window framing, PVC
- air intake: RAL 9016
trickle vent: RAL 9016,
7016, 8003, 8017
- *ends for the body RAL 9016 – white,
others – black
- body: any RAL,