Cleaner

A cleaner comprising:

• a suction unit provided inside a body, wherein the suction unit comprises
• an impeller configured to suction air by rotating about a shaft;
• and
• a diffuser configured to guide air discharged from the impeller, wherein the impeller comprises
• a hub;
• and
• a blade disposed on the hub, and provided with a leading edge disposed in an upstream side in a direction in which air introduced into the suction unit flows and a trailing edge disposed in a downstream side in the direction in which the air introduced into the suction unit flows,
• wherein the leading edge of the blade forms an inclination of 60 degrees or more and 80 degrees or less with respect to an axial direction, and
• wherein the diffuser comprises a first diffuser on which the impeller is seated, and a second diffuser coupled to the first diffuser in the axial direction-.