TY JOUR TI STUDY OF NOISE LEVELS FROM VENTILATION SYSTEMS IN CORRIDORS OF RESIDENTIAL BUILDINGS KW noise KW sound pressure KW ventilation KW mechanical ventilation KW acoustic characteristics JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Abramkina, D.V. AU Ivanova, A.O. PY 2023 IS 8 PB Belgorod State Technological University named after V.G. Shukhov