The acronym S.I.R.A. stands for Italian Company for Acoustic Recovery (Società Italiana per il Risanamento Acustico). Since 25 years Sira specializes in noise damping systems projecting and manufacturing. Sira interventions apply on a widest range of civil and industrial applications. Sira systems are designed for every industrial sector: noise impedancing and absorbent barriers, walls and enclosures; absorbent and reactive silencers; noise damping cabins / canopies; anechoic and semi-anechoic chambers.