NOVELTY - An electronic apparatus system (10) comprises an electronic apparatus; and a fuel cell device (50). The electronic apparatus includes a housing (14) and a thermal radiation mechanism (34) which radiates heat from a heat generating component (30a). The fuel cell device includes an electromotive section, a fuel tank (54), a circulation system which allows air and a fuel to circulate through electromotive section, and a gas purifying filter (76) arranged in circulation system. The filter is located adjacent to thermal radiation mechanism so as to be heatable by heat from radiation mechanism.    USE - As an electronic apparatus system, such as laptop computer, mobile devices, and other electronic devices.    ADVANTAGE - In the electronic apparatus system (e.g. portable computer), the gas purifying filter of the fuel cell device can be heated to high temperature by utilizing the heat from the heat generating component on the electronic apparatus side as a heat source, and no independent heater is expected to be used to heat the filter. Therefore, the purification performance of the gas purifying filter can be improved without increasing the energy consumption of the portable computer, so that impurity elements in an exhaust gas from the fuel cell can be removed with high efficiency. Thus, there may be obtained an electronic apparatus system that has a high electricity generating capacity and is improved in safety and reliability.    DETAILED DESCRIPTION - An electronic apparatus system (10) comprises an electronic apparatus (10) provided with a housing (14), a heat generating component (30a) located in the housing, and a thermal radiation mechanism (34) which radiates heat from the heat generating component; and a fuel cell device (50) which supplies the electricity to the electronic apparatus. The fuel cell device includes an electromotive section which has an anode (67) and a cathode (66) and generates electricity based on a chemical reaction, a fuel tank (54) containing a fuel, a circulation system which allows air and a fuel supplied from the fuel tank to circulate through the electromotive section, and a gas purifying filter (76) arranged in the circulation system and having a catalyst section which decontaminates a gas component in an exhaust from the electromotive section. The gas purifying filter is located adjacent to the thermal radiation mechanism so as to be heatable by heat from the radiation mechanism. The thermal radiation mechanism includes a cooling fan. The gas purifying filter is disposed opposite a downstream side of the cooling fan.    DESCRIPTION OF DRAWING(S) - The figure shows schematic view of internal structure of a portable computer and a fuel cell device.    Electronic apparatus system (10)    Housing (14)    Heat generating component (30a)    Thermal radiation mechanism (34)    Fuel cell device (50)    Fuel tank (54)    Cathode (66)    Anode (67)    Gas purifying filter. (76)