Noise suppressor

A noise suppressor that is removably installed on power generator equipment including an enclosure and a power generator unit, the enclosure including at least one of an air intake port and an air discharge port that are vents, the power generator unit being covered with the enclosure, the noise suppressor comprising:

• a tubular member having a first opening that opens to a direction different from the vent and a second opening that opens to the vent, forming a channel for gas leading from the first opening to the second opening, and provided with an acoustic liner inside the channel, wherein
• the tubular member has such a shape that the channel bends at a plurality of points,
• wherein the enclosure includes the air intake port,
• the second opening opens to the air intake port in a direction along a surface of the enclosure;
• and
• the tubular member extends from the second opening in a direction along the surface of the enclosure;
• and
• wherein the tubular member is disposed at a position surrounding the air intake port in a view in a direction perpendicular to the surface of the enclosure.