Too many positive ions will have you feeling depressed, lethargic and full of aches, pains and complaints. In general, exposure to negatively ionized air has been shown to increase oxygenation of the lungs, vital capacity, and ciliary activity. All types of beneficial responses take place as a result of these friendly ions. Fortunately through modern technology it is possible to control the electrical state of our indoor environments by generating negative ions back in the air. These negative ions attach themselves to airborne toxins and drop them to a surface.
Ions basically take out the larger pollutants in the air.
For example, ozone will take the smell of smoke out of the room and neutralize the chemicals, but will not remove the smoke itself. Negative ions take the smoke out. Ultraviolet Light Air Purifying Ultraviolet light rays are generated in nature by the sun and are one of nature s methods of purifying the air. Ultraviolet light rays with specific wave lengths are germicidal and will strike and destroy viruses, bacteria, and fungi . The ultraviolet component of sunlight is the main reason microbes die in the outdoor air.