<prompt> Acceptable noise level in decibels for Hospital wards is:20-3535-4545-5550-60  <response>: Ans a 20-35Ref : K. Park 23rd ed. 741-42, 19th599Acceptable noise levels dBAResidential:Bed roomLiving room2540Commercial:OfficeConferenceRestaurants35-4540-4540-60industrial:WorkshopLaboratory40-6040-50Educational:Class roomLibrary30-4035-40Hospitals:Wards20-35 