To provide an air conditioner capable of realizing pseudo-environments of various sites so as to allow a person to experience a weather of a particular site in the world in the home.

A controller for the air conditioner accesses a Web site via an internet when a user inputs and sets, for example, 'Paris' of a trip destination and 'AM 11:00 on August 1' of an arrival date, retrieves weather data at set '11:00 on August 1' in 'Paris', displays numeric values of an air temperature, a humidity and a wind speed on a display 25d, controls each unit and an outdoor unit of the air conditioner by a personal computer, creates a pseudo- environment at 'AM 11:00 on August 1', in 'Paris', in hoe, and allows the user to experience the weather at 'AM 11:00 August 1' in 'Paris'.