
impressive power of DHP.
A unique molecule designed to fight viruses, bacteria, mold, odors, and insects.
Synexis is the first company to create and patent Dry Hydrogen Peroxide (DHP), the true gas form of hydrogen peroxide.
Made from naturally occurring elements already in the air, DHP is designed to safely and effectively break down pathogens—flowing freely and continuously through indoor spaces to reduce the presence of microbes in the air and on surfaces, with no reliance on the exchange of air.
The breakdown: DHP & microbes.
Our DHP molecule has a structure similar to a water molecule. Since all microbes (like viruses and bacteria) require water to live, they meet our DHP molecule in the air and on surfaces and attach themselves.
Once attached, DHP breaks down the microbe’s outer cell membrane leading to its destruction. So long microbe!
"Denaturing renders a virus non-infective and destroys it. When DHP attacks the prongs on the outside of the virus and denatures those, it renders them non-infective. Then DHP creates rifts in the spherical body of the virus that causes it to rupture."
Get to know our founder, Jim Lee.
Meet Jim
Attacking microbes in the air and on surfaces.
Microbes like viruses, bacteria, mold, and chemical odors pose the biggest health risks and can be passed along in the air and on surfaces, potentially creating an endless and dangerous cycle. But DHP reduces microbes in even the hardest-to-reach areas.
Not every cleaning method can conquer microbes both in the air and on surfaces. Manual cleaning often misses microbes in the air, and still, the surfaces are only as clean as the last scrub. Methods like UV Light and Hydrogen Peroxide Vapor may address both but are toxic upon direct exposure to people. DHP doesn’t have these challenges.

Is DHP safe?
DHP was designed specifically to allow people to safely remain inside the same room where the technology is breaking down microbes. DHP will continuously attack microbes while everyone in the space goes about their day, no disruption needed.
How does this work? Well, Hydrogen Peroxide already exists inside human lungs. And the DHP from Synexis flows at levels well below those naturally maintained inside the lungs.
DHP is manufactured at an EPA registered establishment in accordance with the Agency’s requirement for devices. We’re also Underwriter Laboratories (UL) Certified to produce no ozone.
For those stoked by science, we’ll take it a step further.
DHP is deployed at less than 20 parts per billion, which produces extremely effective microbial reduction at incredibly safe levels of H2O2. Basically, a single Synexis unit would have to run non-stop for 2.5 years to reach the same concentration of 1 droplet of a 3% aqueous solution of H2O2, which is the Hydrogen Peroxide you know as a brown bottle inside your medicine cabinet. At these levels, DHP concentrations fall far below acceptable safety limits for human exposure established by OSHA.1

How our DHP is expertly crafted.
Every indoor environment naturally contains ambient oxygen and humidity. Once inside our device, the oxygen and humidity are broken apart by a photocatalytic reaction (a chemical reaction involving the absorption of light) and put back together as DHP—hydrogen peroxide in its true gas from.
Watch the Synexis Biodefense System in action.
DHP deep dive.
Looking for more details behind the science of DHP?
Read the white paper, written by our founder Jim Lee, about the chemistry behind the Synexis BioDefense System.
Reference: 1. “Hydrogen Peroxide,” Occupational Safety and Health Administration, 2018, www.osha.gov/chemicaldata/chemResult.html?recNo=630