An air purifier is a device which
removes contaminants from the air.
These devices are
commonly marketed as being beneficial to allergy
sufferers and
asthmatics, and at reducing or eliminating second-hand tobacco smoke.
Commercial grade anion air purifiers
are manufactured as either small stand-alone units or
larger units that
can be affixed to an air handler unit (AHU) or to an HVAC unit found in the
medical,
industrial, and
commercial industries. Air purifiers may also be used in industry to
remove
impurities such as
CO2 from air before processing.
Pressure swing
adsorbers or other adsorption techniques are typically used for this.
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