Fan-type chemical diffusion apparatus, comprising: a chemical receptacle (3) for housing a body impregnated with chemical (10) therein which is impregnated with a volatile chemical, the chemical receptacle having (3) ventilation holes (9)； a chemical receptacle retainer (2b) for holding said chemical receptacle (3)； a power supply housing (2a) for receiving a power supply (12) therein, said power supply (12) feeding a motor (30)； and a main body of apparatus (1) that includes a fan (32) to produce an air flow, said motor (30) to operate the fan (32), a switch (37) to turn on and off the current conduction to said motor (30), an exterior air flow opening (28) and an interior air flow opening (24) disposed on a front face and a side face of said apparatus main body (1), respectively, to allow that the air flow produced by said fan (32) passes through them, characterized in that the apparatus comprises: a recessed portion formed on the front side and the lower side of said main apparatus body (1), and having L-shape in a side view, and that can be charged with said chemical receptacle retainer and said power supply housing (2a), and an electrical connector (36) which, when said power supply housing ( 2a) is loaded in the portion On the lower portion of said recessed portion of said main body of apparatus (1), it is contacted with said power supply (12) received in said power supply housing (2a) to establish electrical connection between said power supply (12 ) and said switch (37)； and said chemical receptacle retaining element (2b) and said power supply housing (2a) are adapted to be removably loaded in the front portion and the lower portion of said recessed portion of said apparatus main body (1 ), respectively, and when loaded they are each located therein so that they receive essentially no volume limitation from each other.Aparato de difusión de producto químico de tipo ventilador, que comprende: un receptáculo de producto químico (3) para alojar un cuerpo impreg
