Negative Ions Cause Dust and Other Particles to Fall Out of the Air.
Most indoor particles that are airborne tend to be positively charged. Negative ions will give some of the particles a negative charge. The positive and negative particles then combine with each other, become heavy and fall to the ground.

Nature is constantly creating negative ions to clear the air. Some examples are waterfalls, waves crashing on the beach and changes in the weather. The SpringAir accomplishes this natural process by employing a special negative ion generator.