Specifications

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Ion generators
Ion generators also use static charges to remove particles from indoor air. They act by dispersing ions
into the air that charge particles in the room. The charged particles are attracted to surfaces such as
walls, floors, tabletops, draperies and room occupants. Some devices contain a collector to attract
the charged particles and keep them contained. Ion generators are relatively ineffective in removing
large particles such as pollen and house dust allergens. Also there is no air flow which results in a
slow cleaning process.
Ozone generators
Ozone generators release ozone freely into the air and because of the highly reactiveness to other
chemical compounds, it can reduce gaseous pollution from the air.
Consumer Reports, a well respective consumer publication in the United States, the National Institute
of Occupational Safety and Health (NISHA) in the USA and the Environmental Protection Agency of
the United States conclude that tabletop and room unit ozone generators are not effective in improv-
ing air quality. Studies have shown that while some air pollutant concentrations decline in the pres-
ence of ozone, other pollutants increase.
Current evidence of the health effects of ozone suggests there is no “safe” threshold level of ozone,
above exposure to background levels. The bottom line is that ozone generators and negative ion
generators may produce levels of ozone recognized as unsafe for humans and are not recommended
by the sources noted above for use in occupied spaces because of the risks.
Ozone
According to the American Lung Association (ALA) in the United States, “ozone is a potent lung irritant
and exposure to elevated levels is a contributor to the exacerbation of lung diseases; it is especially
dangerous for persons with asthma and other chronic lung diseases, children and the elderly.”
Under certain use conditions ozone generating air cleaners can produce levels of this lung irritant
significantly above levels harmful to human health.
Blueair air purifiers do not emit ozone. In fact, testing has shown that in rooms where a Blueair is op-
erating, ozone levels actually decrease.
Gaseous removal
In addition to particle removal devices, air cleaners may also contain absorbents and/or reactive
materials to facilitate removal of gaseous materials from indoor air. Air cleaners that do not contain
these types of materials will not remove gaseous pollutants.