Indoor unit and air conditioner

An indoor unit, which is the indoor unit of an air conditioner, and that is a wall-mounted type which is mounted on a wall, the indoor unit comprises:

• a heat exchange device;
• a blower;
• a housing that has an intake port, and that houses the heat exchange device and the blower therein, and
• a filter that is disposed between the intake port and the heat exchange device, wherein
• the housing has:
• an upper wall portion that is located at a top of the housing;
• an insertion port through which the filter is inserted, and that is formed in the upper wall portion, and
• a mounting portion that is provided on an edge portion of the insertion port in a front side;
• the intake port opens to the top and is formed on the upper wall portion,
• the insertion port opens to a front, and
• the filter has:
• a filter main body that is disposed between the intake port and the heat exchange device;
• a handle portion provided on a front end portion of the filter main body, and that is located in front of the insertion port, and
• the filter is attached to the housing so as to be detachable from an outside of the housing via the insertion port, and
• the handle portion has:
• at least a part of a cover wall portion that overlaps with the insertion port as seen from the front;
• a base portion mounted above the mounting portion, and
• a first protrusion which protrudes to a bottom from the base portion and is hooked onto the mounting portion from the rear, and
• a front surface of the cover wall portion is exposed to an outside of the housing.