SOUND ATTACHED PROTECTIVE GRILL FOR OUTDOOR PLACEMENT:

By using it, noise filtering in from the outside can be significantly reduced in ventilation systems with a side wall connection, e.g. in the case of heat recovery and traditional ventilation devices, air intake elements or exhaust hoods. The special sound-absorbing material placed on the inner surface is made of fire-resistant, maintenance-free material with high sound attenuation properties. The outer covering is a powder-coated aluminum plate, which provides a weather-resistant and aesthetic solution on the outer side wall. Its design enables easy installation on a traditional side wall, both for ventilation pipes of smaller and larger diameter (maximum 165 mm). Protection against insects is made possible by the cleanable insect net placed inside.

Properties:
- Material and surface: weather-resistant powder-coated aluminum sheet, RAL 9010 (white) outer cover.
- Internal sound insulation: internal, self-extinguishing (fireproof) sound-absorbing lining — specifically designed to dampen external noise.
- Noise reduction data (sound reduction index): Dnew ≈ 45 dB.
- Design / Features: easy-to-remove front panel and easy-to-remove insect screen for easy cleaning.
- Rainproof design.
- Fire protection / material quality: the internal sound insulation layer is self-extinguishing (fireproof).
- Installability: can be placed outdoors, can be mounted on a side wall - can be fitted to a ventilation pipe outlet with a maximum diameter of 165 mm.
- Maintenance: can be cleaned with compressed air or a vacuum cleaner, in case of stubborn dirt, clean water.

Areas of use:
- For heat recovery ventilation systems (decentralized and central systems) as an outdoor element.
- For bathroom fans.
- In the design of kitchen extractor hoods.
- As an outdoor unit for side wall air intake elements.
- On the street facade of residential buildings, where it is important to reduce external traffic noise.
- When ventilating bedrooms, living rooms, study rooms, where silence is a basic requirement.
- At the street front premises of office buildings, so that the office environment remains quiet.
- Schools, kindergartens, dormitories - for ventilation of sleeping and study rooms, where external noise would be disturbing.
- Hospitals, medical institutions - patients' peace and rest are not disturbed by traffic noise.
- In the outer walls of hotels and guest rooms, where silence is a priority.
- Studios, rehearsal rooms, radio stations - in places where outside noise could disturb work.
- Buildings near airports, railways, and high-traffic roads - especially useful because these environments are heavily loaded with noise.

Dimensions:
- Width: 254 mm
- Height: 313 mm
- Depth: 120 mm