To maintain homeostasis of the human body, generate a great effect and provide a dodorizing effect by generating functional physiologically activated negative ion air by the use of calcium carbonate of weathered coral powder, water and air with the application of fine outer force such as pressure, friction or vibration.

In this generator, at first, a baking means 1 produces coral calcium carbonate (CaCO3) 2 by baking wheathered coral powder at 10-1,000°C. Then, a separating means 3 separates the coral calcium carbonate (CaCO3) 2 into calcium ions (Ca2+) 5 and carbonic ions (CO32-) 6 by the air of fine outer force (pressure, wind force, friction force or the like) 4. Further, a water content reaction means 7 reacts the carbonic ions 6 with water contents in air (H2O) to have bicarbonate (H2CO3) 8 being buffer base-physical function activating ions and hydroxyl ions (OH-) 9 being physical function activating ions (negative ions).