A noise reduction apparatus includes a housing, a first baffle component, and a second baffle component. The housing includes a first installation chamber configured to contain diesel generating equipment, and the first installation chamber has a top plate, a bottom plate, and a first side plate, and a second side plate that is disposed opposite the first installation chamber from the first side plate. An air intake vent is disposed on the first side plate, and an air exhaust vent is disposed on the second side plate. A first serpentine channel is formed in the first baffle component, and one end of the first serpentine channel is connected to the air intake vent. A second serpentine channel is formed in the second baffle component, and one end of the second serpentine channel is connected to the air exhaust vent.