Unique hearing protection devices--the search for a balance.
Gasaway
D C
DC
Aearo Co., San Antonio, Texas, USA.
D003144:Communication Barriers; D004430:Ear Protective Devices / Q000009:adverse effects* / Q000592:standards*; D004867:Equipment Design; D006801:Humans; D009623:Noise, Occupational / Q000009:adverse effects*; D013067:Speech Perception