Continuous positive airway pressure (CPAP) device

A Continuous Positive Airway Pressure (CPAP) device for sending air suctioned into the CPAP device to an airway of a user, the CPAP device comprising:

• an air blower;
• and
• a housing in which an air blower chamber is provided to accommodate the air blower, wherein
• the air blower includes an impeller rotatable about a rotation axis, a drive unit that drives to rotate the impeller, and a casing surrounding the impeller,
• the casing is provided with a suction port for suctioning air inside the air blower chamber into the casing, and a discharge port for discharging the air inside the casing to outside of the casing,
• the suction port is located at a top plate portion overlapping with the rotation axis, the top plate portion being one of a pair of wall portions of the casing, the pair of wall portions sandwiching the impeller in a direction in which the rotation axis extends,
• wall portions defining the air blower chamber include a wall portion that is located at a portion not overlapping with the top plate portion when seen along the direction in which the rotation axis extends and that is provided with an introduction port for introducing air outside the housing into the air blower chamber,
• the air blower chamber includes a facing wall portion facing the top plate portion with a distance between the facing wall portion and the top plate portion,
• in a space between the facing wall portion and the top plate portion, a flow adjustment portion that partitions at least a portion of the space into a plurality of flow paths arranged side by side around the rotation axis is provided,
• an outer end portion and an inner end portion of each of the plurality of flow paths in a direction orthogonal to the rotation axis include respectively a first open end and a second open end, the first open end and the second open end being open along the direction orthogonal to the rotation axis,
• the flow adjustment portion is provided on the top plate portion to protrude toward the facing wall portion, and
• the flow adjustment portion is located to be separated from the facing wall portion.