A refrigeration cycle apparatus comprising: a refrigeration cycle through which refrigerant is circulated; an indoor unit accommodating at least a load-side heat exchanger of the refrigeration cycle, the indoor unit being placed indoors; and a controller configured to control the indoor unit, the indoor unit including an air-blowing fan, an air inlet through which indoor air is sucked in, an air outlet through which the air sucked in from the air inlet is blown indoors and at least one up/down airflow direction louver (120, 120a-120e) configured to adjust the up/down direction of the flow of air blown out of the air outlet and which is disposed at the air outlet and wherein the up/down airflow direction louvers (120, 120a-120e) are attached such that each of the up/down air flow deflection louvers (120, 120a to 120e) is rotatable about a rotational axis extending in the horizontal direction, and at least one left/right airflow direction louver (121, 121a-121e) configured to adjust the left/right direction of the flow of air blown out of the air outlet and which is disposed at the air outlet, the controller (3.0) being configured to activate the air-blowing fan when leakage of the refrigerant is detected, wherein the up/down airflow direction louvers (120a-e) are configured in such a way as to ensure that air passage in the air outlet is established irrespective of how the up/down air flow direction louvers are oriented within a movable range by being located at the back side relative to the open end of the air outlet or by the rotational axes of the airflow direction louvers lying in substantially the same plane which is inclined with respect to the open end of the air outlet such that the plane is positioned more frontward as the plane extends upward the air outlet being configured to establish an air passage configured to allow air to pass through the air outlet at least when leakage of the refrigerant is detected. a refrigeration cycle through which refrigerant is circulated; an indoor unit accommodating at least a load-side heat exchanger of the refrigeration cycle, the indoor unit being placed indoors; and a controller configured to control the indoor unit, the indoor unit including an air-blowing fan, an air inlet through which indoor air is sucked in, an air outlet through which the air sucked in from the air inlet is blown indoors and at least one up/down airflow direction louver (120, 120a-120e) configured to adjust the up/down direction of the flow of air blown out of the air outlet and which is disposed at the air outlet and wherein the up/down airflow direction louvers (120, 120a-120e) are attached such that each of the up/down air flow deflection louvers (120, 120a to 120e) is rotatable about a rotational axis extending in the horizontal direction, and at least one left/right airflow direction louver (121, 121a-121e) configured to adjust the left/right direction of the flow of air blown out of the air outlet and which is disposed at the air outlet, the controller (3.0) being configured to activate the air-blowing fan when leakage of the refrigerant is detected, wherein the up/down airflow direction louvers (120a-e) are configured in such a way as to ensure that air passage in the air outlet is established irrespective of how the up/down air flow direction louvers are oriented within a movable range by being located at the back side relative to the open end of the air outlet or by the rotational axes of the airflow direction louvers lying in substantially the same plane which is inclined with respect to the open end of the air outlet such that the plane is positioned more frontward as the plane extends upward the air outlet being configured to establish an air passage configured to allow air to pass through the air outlet at least when leakage of the refrigerant is detected.