FILTER APPARATUS PROVIDED WITH FAN

PROBLEM TO BE SOLVED: To miniaturize and constitute thin a filter apparatus provided with a fan, lower the noise, and make the distribution of wind velocity uniform by installing an air current backward flow preventive plate having an aperture part smaller than an air suction inlet of an axial fan in the upstream side of the axial fan. SOLUTION: An axial fan 2 is installed by the opposed wall 1a side of a terminal stand 4, a terminal stand installation base 5 to install the terminal stand 4 is produced by bending a flat plate, and the terminal stand 4 is placed on the bottom face part 5a. An aperture part 5b is set forward the axial fan 2 side, so that air current from the axial fan 2 hardly comes into collision against the terminal stand installation base 5 through the aperture part 5a. An air current backward flow preventive plate 6 having an aperture part 6a smaller than an air suction inlet 2d of the axial fan 2 is installed in the upstream side of the axial fan 2. Consequently, a filter apparatus provided with the fan can be miniaturized and thinned and the noise is lessened and the wind velocity distribution is made even.