Frequently Asked Questions (FAQ)

Titanium Dioxide (TiO2) - what is it and how does it work? (4)

  1. What is titanium dioxide (TiO2), and how does it work as a photocatalyst?

Titanium Dioxide (TiO2) is the naturally occurring oxide of titanium. Approved by the United States Food and Drug Administration (FDA), it is considered a safe substance that is harmless to humans. It is used in paint, printing ink, plastics, paper, synthetic fibers, rubber, condensers, crayons, ceramics, electronic components, food and cosmetics, including toothpaste and teeth-whitening solutions. More than 70% of all white pigments used today are TiO2 based.

Many studies have been published on the use of TiO2 as a photocatalyst for the decomposition of organic compounds. When illuminated by UV light, from the sun or internal lighting, TiO2 catalyzes the production of hydroxyl radicals, which oxidize and thereby destroy any organic compounds they come into contact with. These include microorganisms, bacteria, viruses, fungi, mold, algae, mildew, oils, organic particulates, VOC (Volatile Organic Compounds) and dirt in general.

The hydroxyl radicals are generated from ambient oxygen and water vapor, and the TiO2 is not consumed in the process (it is only a catalyst).

  2. Who uses TiO2 as a disinfectant?

TiO2 has wide ranging applications, and has experienced years of successful use as a disinfectant in the Japanese market. The Japanese government uses TiO2 in public bathrooms to keep them smelling fresh in a low-maintenance environment.

They apply TiO2 coatings to highway guard rails to keep them looking new amidst constant bombardment from hydrocarbons and particulates from vehicle exhaust. The outside of some Japanese high-rises are treated with TiO2 to make the glass and metal maintenance clean-free.

TiO2 coatings are also widely used in the health care, food, janitorial, auto, and construction business.

Many Japanese homeowners treat their mini-blinds, windows, furniture, bathrooms, showers, carpets and flooring with TiO2 solutions in order to keep them free of organic compounds, including microorganisms, bacteria, fungi, viruses, mold, algae, mildew, oils, organic particulates, VOCs and dirt in general.

  3. How effective is TiO2 as a disinfectant?

The hydroxyl radicals produced by the TiO2 catalyst are among the strongest of oxidizing agents, even stronger than chlorine, ozone, and peroxide, without being as toxic. They therefore act as very powerful disinfecting agents, eliminating a wide variety of organic contaminants.

  4. Is Titanium Dioxide (TiO2) safe?

Titanium Dioxide is FDA approved; TiO2 is harmless to humans (and pets) and is used widely as a food additive, as well as in paint, toothpaste, sweets and a wide variety of other day-to-day applications.

The CleanCoat™ liquid coating from Anano Sphere is not for human consumption, but is safe to touch both before and after application.

CleanCoat™ should not be applied directly to pets or animals. It can, however, be used to remove pet odors from animal bedding, house and/or car interiors.