About UV Light Air
Research Studies and Facts
No other air purification is more
effective at neutralizing micro-organisms than
ultraviolet light radiation.
How Ultraviolet Light
light possesses just the right amount of energy to break organic
molecular bonds. As micro-organisms pass by the UV rays radiated
from the ultraviolet lamp, this bond breakage translates into
cellular or genetic damage for micro-organisms, such as germs,
viruses, bacteria, fungi (like molds), etc. This resulted in the
destruction of the micro-organisms. The same damage occurs to
humans, but is limited to the skin and eyes.
Light Air Purifier Facts & Studies
Centers of Disease Control (CDC) recommends the use of
ultraviolet light for air purification.
government now specifies that UV light should be used in air
handling units to improve indoor air quality in government
buildings, by controlling airborne and surface microbial
The Air Institute of
Respiratory Education suggests UV lights be used in
buildings for indoor air quality purposes, and states that may
be the final line of defense against those diseases that
have developed resistance to drugs, such as tuberculosis and
According to the
Aerobiological Engineering Dept. at Penn State University,
the ultraviolet component of sunlight is the main reason
microbes die in the outdoor air. The die-off rate in the
outdoors varies from one pathogen to another, but can be
anywhere from a few seconds to a few minutes for a 90-99%
kill of viruses or contagious bacteria.
The Centers of Disease Control (CDC) recommends UV lights
in homeless shelters to prevent the spread of disease,
particularly TB (tuberculosis).
UV Light Air Purification
UV Lamps Reduce Worker
This study tested 771 employees in
three different office buildings. The UV lights, which were
installed in the ventilation system, were operated in three cycles
of four weeks on, twelve weeks off. Measurements showed a 99%
reduction of germs on irradiated surfaces inside the ventilation
During some weeks, there was a 40%
reduction in respiratory symptoms, and a 30% reduction in mucous
problems in individuals examined. When the lights were activated,
muscle complaints among nonsmokers were reduced by 50%, and
work-related breathing problems decreased by 60%.