Photo Catalytic Oxidation (PCO)

One of the most recent air cleaning technologies to emerge is Photo Catalytic Oxidation.  Bioclimatic’s

system provides the full benefits of photocatalytic oxidation and germicidal UV.  The Bioclimatic PCO

system is designed to safely and effectively remove many VOCs from the air and improve indoor air

quality, and neutralize or deactivate many biologic contaminants like bacteria, viruses, mold, and fungi.  

It is an effective, environmentally friendly, and low cost way to remove these harmful and objectionable

contaminants and improve indoor air quality.

Bioclimatic Air Systems
Users of the system may be able to reduce the amount of outside air they need in their HVAC system while maintaining or improving indoor air quality which leads to significant savings in heating and cooling energy costs by reducing ventilation load. Photo Catalytic Oxidation provides multiple air cleaning benefits. Eliminates VOCs Reduces odors Deactivates or kills biological contaminants including bacteria, viruses, mold, and fungi Does not generate Ozone Generates energy savings Low first cost and low operating costs In its simplest form, a PCO air cleaner uses germicidal ultraviolet (UV) light and a titanium dioxide (TiO2) catalyst to oxidize and reduce many volatile organic compound (VOC) gases in the air.  When a surface coated with the catalyst is irradiated with UV light a chemical reaction takes place at the surface.  Hydroxyl radicals, one of the most effective air cleaning (oxidizing) agents, are formed from the catalysts’ interaction with water vapor.  These radicals react with and neutralize VOCs and kill or interfere with the life cycle of many viruses and bacteria.  The titanium dioxide catalyst is proven efficient, economical, and safe.  
© 2018 Bioclimatic Air Systems, Inc.
System Structure The Bioclimatic PCO system is comprised of UV lamps, photocatalytic panels with a titanium dioxide coating permanently bonded to the panels, and high efficiency filtration.  Each PCO panel is a honeycomb matrix coated with titanium dioxide catalyst that is designed to maximize the amount of irradiated surface area for optimum air cleaning performance.  The number, size, and configuration of the components are determined by the size of the system and the contaminants that need to be removed or neutralized.  The UV lamps (C band) emit an optimum germicidal wavelength of 254 nanometers and are placed are placed approximately 6” from the catalytic panel to provide maximum air cleaning efficiency and easy access for maintenance, with the net result a very simple but capable and durable air purification system. PCO Panel The heart of the PCO system is the photo catalytic panel.  The panel is a ¾” deep aluminum honeycomb with TiO2 coating that is permanently bonded to all surfaces of the panel.  The panel structure, size and shape are designed to maximize the system air cleaning and purification capacity while minimizing airflow pressure drop. A 24” by 24” honeycomb panel has over 10,000 square inches of catalytically active surface to provide the maximum air cleaning performance.  Panels are available in a variety of sizes to fit different systems configurations. The positions of the panel and lights are optimized to maximize the air cleaning catalytic reactions. The panel has no moving parts and the bonded TiO2 catalyst is not consumed by the reaction.   The catalyst does not shed or deteriorate; it does not require any scheduled replacement over time).  Properly maintained, the panel can provide many, many years of service. The near optimum geometry of the honeycomb panel imparts extremely low pressure drop for reduced fan horsepower and high efficiency. Performance Photocatalytic Oxidation is a proven air cleaning technology.  Independent test results from around the world confirm that Bioclimatic’s technology produces profound reductions in air pollutants and contaminants.  93.6% reduction in viruses and bacteria 80% drop in VOCs Reduces ozone and formaldehyde Extremely low pressure drop