| ionized Hydrogen Peroxide (iHP™) | Vaporized Hydrogen Peroxide (VHP®) |
|---|---|
| iHP™ uses a low percentage hydrogen peroxide (7.8%) solution. | VHP® requires a highly (30%-59%) concentrated hydrogen peroxide solution. |
| Intensive preparation is not required and if exposed, there are no harmful effects to the health of personnel, as long as eyes and mucus membranes are protected. | Concentrated hydrogen peroxide causes irreversible eye damage on exposure. |
| iHP™ does not require PPM level monitoring for efficacy of disinfection. | VHP® requires the space to reach a very high level of 800 PPM for efficacy of disinfection. |
| iHP™ is an aerosolized fog that spreads like a gas and does not need any extensive process prior to treatment. | VHP® is very difficult to maintain as a vapor unless certain operating temperatures and conditions are met. |
| iHP™ functions at all normal ambient conditions. | VHP® must be operated under “dry” conditions; it is very difficult to maintain in the “vapor” phase at relative humidity greater than 30% and the presence of condensing moisture renders VHP® ineffective upon surfaces. |
| iHP™ is scalable and can decontaminate large spaces. | These engineering requirements limit the utility of VHP® to enclosed environments as it is not suitable for large or open area decontamination. |
| iHP™ decontaminates on contact, with demonstrated 6-log efficacy or greater in seconds. | VHP® requires a minimum of 30 minutes exposure under optimized conditions to decontaminate surfaces. |
| iHP™ has proven suitable for treatment of HVAC systems as demonstrated in the DARPA grant. | VHP® is not suitable for treatment of HVAC systems because it corrodes the ducts and has inconsistent activity in the presence of metals. |
| iHP™is a powerful radical and only requires seconds to decontaminate. | VHP® is a strong, non-specific, oxidant that decomposes very slowly and is predicated upon it remaining active for long periods of time. |
| iHP™ is safe for use around all metals and hundreds of other materials including all materials used to fabricate laboratory and hospital products. | VHP® is not compatible with iron and other ferrous metals because of its reactivity and its long exposure time. |
| iHP™ does not damage walls or laboratory furniture. | VHP® is known to emanate gas for up to 72 hours and has blistered painted walls and pitted stainless steel. |
| iHP™ can be shipped by all air carriers around the world. | VHP® cannot be shipped by air. |
| iHP™ can be stored on the shelf, no restrictions. | VHP® must be stored in a special explosive cabinet, and modified VHP® has additional handling restrictions and toxic hazards associated with its use. |
| iHP™ BIT™ solution is EPA registered and can be easily disposed of. | VHP® must be disposed of as hazardous material. |
