Photocatalytic oxidation uses ultraviolet light and titanium dioxide catalysts to break down VOCs, odors, and biological contaminants into harmless water and carbon dioxide. This technology processes airstreams of 500-2000 CFM and destroys contaminants at the molecular level rather than filtering them. Systems cost $800-$2,500 installed with minimal ongoing maintenance.
Technical Function
UV-C light energizes titanium dioxide coatings on reactor surfaces, creating powerful hydroxyl radicals that oxidize contaminants. The process handles formaldehyde, benzene, toluene, and bacterial pathogens effectively. Energy requirements range from 20-75 watts depending on airflow capacity and reactor design.
Installation and Performance
Photocatalytic systems integrate into standard ductwork or air handler units without modifying airflow patterns. Pressure drop remains negligible at under 0.05 inches of water column. Annual maintenance involves occasional UV lamp replacement costing $100-$200. Studies show 50-80% reduction in VOC concentrations with continuous operation, making these systems ideal for recently renovated spaces or homes with persistent odor problems.