Ultra-silent diesel generators are designed to operate without polluting the environment with noise. Multi-layer insulated enclosures, specialized mufflers, sound-proofed cabins and parts that reduce vibrations are some of the advanced technologies and materials incorporated into these generators. These equipment is most suitable to maintain a high level of satisfaction in clients that show a low tolerance to noise, as in residential neighborhoods during power outages or sensitive commercial businesses. Even with the focus on ultra silence, these generators are able to power and perform as any diesel generators would. Strict noise-control maintenance of engine, sound-proofing components, maintenance electrical piping systems tends to be more frequent to ensure ultra silent operating values are achieved with the generators.