HomeServicesAir Purification SystemsPCO & DHP

Photocatalytic Oxidation (PCO)
and Dry Hydrogen Peroxide (DHP)

  • Consists of a pure or doped metal oxide semiconductor material.
  • Most Common Photocatalyst is Ti02 (titanium dioxide).
  • Activated by a UV light source.
  • UV-A (400-315nm)
  • UV-C (280-200nm
  • UV-V (under 200nm) Ozone can be formed at UV-V wavelengths.
  • Light mediated, redox reaction of gases and biological particles absorbed on the surface.
  • Some units claim disinfection from gaseous hydrogen peroxide.
  • Possible by-products formed by incomplete oxidizing.
  • Some air cleaners using PCO remove harmful contaminants to levels below limits for reducing health risks set by recognized cognizant authorities.
  • Some are ineffective in reducing concentrations significantly; manufacturer data should be considered carefully.

More information can be gathered here

Get In Touch

If you have questions about our products or services, we are here to help!


Project Gallery

Just Some of the Preventative Screens G&B Environmental Has Installed for Our Customers