"…Negative ion exposure appeared associated with feeling better about self, less sensitive, and more responsive or energized."

Journal of Aviation, Space, and Environmental Medicine

Help freshen and purify the air.

Also have been shown to help lift mood and alleviate depression.

Reduce neurosis and anxiety.

Heighten appetite and thirst.

Sharpen mental functioning.

Create overall calming effect.

Give relief from hay fever, sinusitis, bronchial asthma, allergies, migraine and burn and post-operative pains.

Increase the rate of oxygen intake.

Fruits stay fresh longer: after 10 days, ionized tomatoes will still be fresh whereas those not ionized would have rotted.