Air conditioner

PROBLEM TO BE SOLVED: To solve the problems that air supply operation allows the introduction of outside air into a room but gives unpleasant feels to dwellers when the outside air is contaminated by various materials, and if the outside air is introduced into the room via a filter to solve this problem, an air cleaning filter provided in an air supply/exhaust unit brings about the air supply/exhaust unit to be wider and so its heat exchanger should be smaller resulting in a reduction in the capability of conditioning temperature/humidity as the originally basic purpose of an air-conditioner and the heat exchanger, and if not changed in size, it brings about an indoor unit to be larger in shape. SOLUTION: An air supply filter 21 is provided through which outside air passes during air supplying operation. The rotating shaft of a sub-fan 19 is arranged in parallel to the rotating shaft of a main fan 9 so that the air suction face of the sub-fan 19 is not at a right angle to the air passage face of the air supply filter 21. COPYRIGHT: (C)2005,JPO&NCIPI