Ventilation apparatus and air conditioner including the same

A ventilation apparatus comprising:

• a fan configured to suck outdoor air to be supplied to a room;
• a case configured to accommodate the fan and provided with a flow path to which the fan is connected;
• a ventilation pipe including an inlet tube mountable to an outdoor air inlet, and an extension tube to connect the flow path and the inlet tube, the extension tube being detachable from the inlet tube;
• and
• first and second ventilation filters installable in the ventilation pipe through a connection portion between the inlet tube and the extension tube to filter out substances in air introduced through the outdoor air inlet;
• wherein the first ventilation filter includes a first air filtering part, in a cup shape, installable such that the first air filtering part is inserted into the inlet tube to extend in a direction opposite to a flow direction of the air, and
• the second ventilation filter includes a second air filtering part, in a cup shape, installable such that the second air filtering part is inserted into the extension tube to extend along the flow direction of the air.

A ventilation apparatus comprising:

• a fan configured to suck outdoor air to be supplied to a room;
• a case configured to accommodate the fan and provided with a flow path to which the fan is connected;
• a ventilation pipe including an inlet tube mountable to an outdoor air inlet, and an extension tube to connect the flow path and the inlet tube, the extension tube being detachable through the outdoor air inlet;
• and
• a ventilation filter including a cup-shaped air filtering part having an opening side supported in the ventilation pipe and extending in a flow direction of air in the ventilation pipe,
• wherein the ventilation filter comprises a first ventilation filter and a second ventilation filter, and
• the first ventilation filter is installed such that the cup-shaped air filtering part of the first ventilation filter is inserted into the inlet tube and the second ventilation filter is installed such that the cup-shaped air filtering part of the second ventilation filter is inserted into the extension tube.