NOVELTY - An agitator (34) has stirring blades (39,40) for extruding and pushing the excrements along circumferential direction of the treatment tank (31) containing base material (69) such as chaff and microorganisms respectively.    USE - In portable toilet integrated with chair for aged persons, physically handicapped persons, etc.    ADVANTAGE - Prevents the bad odor in the room. Prevents the scrapping of the excrement. Enables an efficient decomposition of the excrement by microorganisms. Reduces the noise during sleeping.    DETAILED DESCRIPTION - An agitator (34) has stirring blades (39,40) for extruding and pushing the excrements along circumferential direction of the treatment tank (31) containing base material (69) such as chaff and microorganisms respectively.    The base material (69) comprising chaff and the microorganism such as enterobacteria of livestock and soil microbe are stored inside the removable treatment tank (31) whose opening (6) is formed at the upper surface of the seating portion (3) of the chair (1). An agitator (34) has stirring blades (39,40) for extruding and pushing the excrements along circumferential direction of the treatment tank respectively, by rotating it using the drive unit (33) at concentric to the agitator. The switching mechanism is provided for allowing the indoor air to pass into an air cleaner (47) without allowing the excrement out of the treatment tank. A filter (48) provided for filtering the impurities from air ejected out of the tank has deodorant. The rotational speed of the agitator is controlled when the detected moisture content is below 35% for replenishing the moisture/water in the tank. The controller stops the rotation of an agitator to a greater time during sleeping than that during operation.    DESCRIPTION OF DRAWING(S) - The figure shows the vertical sectional side view of an excretion auxiliary equipment. (Drawing includes non-English language text).    chair (1)    chair (3)    opening (6)    treatment tank (31)    drive unit (33)    agitator (34)    stirring blades (39,40)    air cleaner (47)    filter (48)    base material (69)