Abstract: A heat exchanger such as a heater is inserted into an air-conditioner casing and fixed thereto. Projected fixing members are formed at an opening of the casing through which the heater is inserted. The fixing member resiliently deforms to allow the insertion of the heat exchanger and automatically recovers its original shape to keep the heat exchanger at an inserted position. The fixing member may be formed in a hook shape having a sloped surface which is straightened when the heat exchanger is inserted and automatically recovers its original slope after the heat exchanger is fully inserted. Thus, the heat exchanger is easily inserted into the casing and firmly held therein without using parts for fixing the heat exchanger.

Abstract: A filter for a vehicle air conditioning apparatus is composed of only a filter medium, and is disposed in a case. A first support member supports a peripheral portion of the filter and a second support member supports a central portion of the filter in the case to prevent deformation of the filter. The filter composed of only the filter medium can be bent, and be detached from the case in a narrow space. It is not necessary to detach opposing parts such as a glove compartment to detach the filter.