A photocatalytic air purifier is disclosed. The photocatalytic purifier includes
filter structures coated with a catalytic material such as titanium dioxide. One
or more UV lamps are interposed between the filter structures. The catalytic layer
reacts with airborne VOCs and bioaerosols when activated by the UV lamps to thereby
oxidize the VOCs and destroy the bioaerosols. The photocatalytic air purifier does
not need to be replaced or regenerated after a period of continuous usage. The
photocatalytic purifier of the present invention substantially eliminates odors,
VOCs, and bioaerosols from air directed through the fan coil. The photocatalytic
air purifier includes a control system that optimizes operating costs. Because
of these features, service, maintenance, and filter replacement are reduced to
a minimum. At the same time, the well being of persons living in the space conditioned
by the photocatalytic air purifier is improved.
