Proving the Effectiveness of Negative Ions
U.S. Dept. of Agriculture
The U.S.D.A. discovered the
following in recent studies conducted in a poultry house (which are
- Reduced salmonella (bacteria) transmission between
chicks by 98%.
- Reduced airborne salmonella (bacteria) by 95%.
- Reduced airborne dust & particles by 99% in 60
of Negative Ion Generator Study from USDA Website
Purification Technologies Comparison
Journal of Hygiene
This scientific publication reports that negative ions cause dust particles
to agglomerate and settle out of air. For this same reason, ionization
can improve the efficiency of filters.
In March of 1999, Good Housekeeping Magazine had its engineers test
an ionizer by using a smoke test, and found that it cleared out the smoke in
Journal of Hygiene
Scientists showed that ionization reduced bacterial levels in burns and
plastic surgery units by over 96% after a two week period, which
results in much better and more rapid healing of patients.
Researchers found people with winter and chronic depression show that
negative ion generators relieve depression as much as antidepressants.
It was also determined that there are relatively no side effects.
European Respiratory Journal
A statistically significant decrease of carbon monoxide values was
found with an ionizer activated. This was discovered by researchers at
Brompton Hospital in London, and published in European Respiratory Journal.
Journal of Applied
The use of negative ions was even found by scientists to reduce the presence
of airborne viruses by about 40%. A study featured in the 1987 issue
also showed the negative ions are free from any adverse side effects.
St. James University Hospital
Researchers have found that hospital-acquired infections among
patients in the Intensive Care Unit were dramatically reduced when
ionizers were introduced - and have remained so since. The ionizers were
found to successfully remove bacteria from air, reducing the transmission of
A 1976 study featured in this publication provided evidence that negative
ions can have a biologically lethal effect on airborne
Journal of Hygiene
A 1979 study found that using negative ionization in the air protected
chickens from airborne infection of the deadly Newcastle Disease Virus.
Journal of Food
A 2001 study found that airborne negative ionization was highly effective at
destroying airborne and surface salmonella.
University of Medicine
and Pharmacy (Romania)
A test on male rats showed that just moderate levels of negative ions
increased the resistance of the rats, reducing or eliminating the effect of
Effect of Negative Ions
A study by Toyota Central R & D Labs, Inc. found that negative ions can
improve fatigue and cognition of drivers. (Copy
of Study - PDF File)
Other Negative Ion
State University Graduate School of Architectural Engineering & Dept. of
Ions Stimulate Mitochondria" Institute of Theoretical and Experimental
Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia.
How Negative Ions Purify the Air
Virtually all particles in the air have a
positive charge, while negative ions have a negative charge. In which case,
negative ions and particles magnetically attract to one another. When
there is a high enough concentration of negative ions in the air, they will
attract to floating particles in large numbers. This causes the particle to
become too heavy to remain airborne. As a result, the particle will
fall out of the air, preventing it from being inhaled into the respiratory
tract where it can trigger breathing and health problems.
The ionized particle will then be collected
by normal cleaning activities, such as vacuuming or dusting. If the particle
happens to be kicked back up into the air again, it will be ionized, and
quickly settled out of the air once again.
In nature, negative ions are generated by
processes such as sunlight, lightening, waves from the ocean, and from
waterfalls. "Concrete Jungles" minimize the natural production of negative
ions by disrupting the delicate electrical balance between the atmosphere
and the earth. Ionizer/ionic air purifiers recreate them with electrode pins
("needlepoints") to electrically produce negative ions. This method produces
a density that is many times higher than the negative ion level found at
Niagara Falls, the highest natural producer of negative ions and one of the
healthiest environments in the world.