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The Nano Confined Catalytic Oxidation (NCCO) process is at the core of Celadon’s air purification technology. This patented process is one of the safest and most efficient approaches to air purification on the market today as it takes in air pollutants, bacteria and viruses and releases basic elements of water and carbon dioxide back into the environment.

Three Layers of Filtration

Every Celadon purification unit has a three layer filtration system.

The Pre-Filter removes large dust particles, mold, pet hair and other large airborne contaminants before they reach the HEPA filter. This helps maintain efficiency and extends the life of the HEPA filter. Celadon Pre-Filters are ultra-low maintenance, washable mesh that will last a lifetime.

The HEPA filter removes fine dust and particulate matter, cigarette smoke and other airborne particles, and allergens such as pollen. Celadon’s HEPA filters are low cost and easy to replace and require zero maintenance between replacements.

The NCCO core filter uses catalytic oxidation and a unique chemical formulation of zeolite to repeatedly trap and break down pollutants. The catalytic reaction caused by active oxygen (also known as ozone) and zeolite removes volatile organic compounds, ammonia, bacteria, and viral materials from the air as well as reabsorbing all of the active oxygen (ozone) that was generated. What comes out of the unit after this process is harmless basic elements of water and carbon dioxide.

Lower Cost of Maintenance

The NCCO core filter repeatedly traps particles and breaks them down by catalytic oxidation. By breaking down the particles instead of just trapping them in an Activated Carbon filter there is a much lower maintenance cost associated with the NCCO method as its filter should never need replacing under normal circumstances. (The replacement of Activated Carbon media filters in other air purification system can run up to hundreds of dollars per filter.)


The NCCO patented air purification process was developed at the Hong Kong University of Science and Technology.