Resource Center
Kill claims, protocols, and the evidence behind them.Every claim on this site traces back to an EPA master label, with the registration number, concentration and contact time attached.
The claims, in full
Most disinfectant marketing summarises. These pages do not. Each one lists every registered claim for the product, with the organism, the concentration in parts per million available chlorine, the required contact time and the strain tested.
PurOne claims
Bacterial, virucidal, fungicidal, sporicidal and biofilm claims, with concentrations and contact times. Includes the February 2026 master label additions.
C. diff 4306 ppm · 4 min
Biofilm 4306 ppm · 4 min
What the organism does, and what the label supports
How each pathogen survives on surfaces, where standard protocols break down, and the concentration and contact time the label calls for.
Candida auris
Why a kill claim is not the same thing as performance on a patient floor.
Biofilm
The layer most disinfectants are never tested against, and why it changes the math.
Clostridioides difficile
Spore survival, contact times, and where standard protocols break down.
Black mold
Stachybotrys chartarum and the mold species that follow water damage.
Norovirus
Closure risk, transmission, and the concentration the label calls for.
Influenza and RSV
Seasonal respiratory pathogens and surface protocol.
Protocols by facility type
Concentration by area, cleaning frequency, and outbreak response, written for the way your building actually runs.
Take it to your committee
All efficacy claims referenced on this site are registered with the United States Environmental Protection Agency and apply only when the product is used according to label directions, at the stated concentration and for the stated contact time. PurTabs is EPA Reg. No. 71847-6. PurOne is EPA Reg. No. 71847-7. Always read and follow the full product label before use.