GOŁEBIEWSKI R, WICHER A, DURAJ A, KACZMAREK-KLINOWSKA M, MRUGALSKA-HANDKE K. Objective and Subjective Assessment of the Sound Attenuation Efficiency Obtained by Custom Moulded Earplugs with Various Acoustic Filters – a Preliminary Study. Arch. Acoust. 2022;47(2):201-212. doi:10.24425/aoa.2022.141650