A lamp including a reflective portion is utilized in a fluid purification
system to maximize the light delivery to a photocatalytic coating that
oxidizes gaseous contaminants that adsorb onto the surface to form carbon
dioxide, water, and other substances. An ultraviolet light source
positioned proximate to the honeycomb activates the titanium dioxide
coating. In one example, the reflective portion is a reflective coating.
Light directed out of the non-reflective portion of the lamp travels
towards the honeycomb and absorbs onto the photocatalytic coating. Light
directed towards the reflective portion on the lamp is reflected off the
surface of the reflective portion and passes through the non-reflective
portion of the lamp to also absorb onto the photocatalytic coating. The
reflective portion reflects light towards the honeycomb that would
otherwise be misdirected away from the honeycomb, increasing efficiency
of the fluid purification system.