HEALTHCARE · INFECTION PREVENTION
Clostridioides difficile disinfection
PurOne (EPA Reg. 71847-7) and PurTabs (EPA Reg. 71847-6) are EPA-registered against Clostridioides difficile spores on hard, non-porous surfaces.
EPA REG. 71847-7 / 71847-6 · C. diff spores 2153 ppm / 10 min · 4306 ppm / 4 min
What PurOne and PurTabs are registered for
EPA REG. 71847-7
PurOne
PurOne is EPA-registered as a healthcare disinfectant for hard, non-porous surfaces in critical areas potentially contaminated with Candida auris, under EPA Registration 71847-7.
4306 ppm · 2 minutes
2153 ppm · 6 minutes
EPA REG. 71847-6
PurTabs
Kills Clostridioides difficile spores [formerly Clostridium difficile] on hard, non-porous surfaces at 2153 ppm with a 10-minute contact time. Kills Clostridioides difficile spores [formerly Clostridium difficile] on hard, non-porous surfaces at 4306 ppm with a 4-minute contact time. (Tested with 0.25% Bovine Serum Albumin, 0.08% Bovine Mucin, 0.35% Yeast Extract.)
2153 ppm · 10 minutes
4306 ppm · 4 minutes
Putting it into a protocol
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Pre-clean.
Fecal matter and waste are thoroughly removed before disinfection. Vigorous wiping or scrubbing until all visible soil is gone.
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Prepare the solution.
2153 ppm or 4306 ppm available chlorine, chosen against how long your protocol can hold the surface wet. Tablet counts and water volumes are on the dilution chart.
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Apply and hold.
Ensure surfaces stay visibly wet for the full contact time listed above. If the surface dries early, the claim does not apply.
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Direction of work.
Right to left or left to right on horizontal surfaces, top to bottom on vertical. Restrooms last. Do not reuse soiled cloths.
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Coverage.
Manual wiping can miss three-dimensional surfaces. Electrostatic application charges product droplets, helping them wrap around surfaces to reach all sides and edges, IV poles, wheelchair frames, and other complex geometry.
Frequently asked
Is PurOne effective against C. diff spores?
Yes. PurOne and PurTabs are both EPA-registered sporicides against Clostridioides difficile on hard, non-porous surfaces, at 2153 ppm / 10 minutes or 4306 ppm / 4 minutes.
Does the C. diff claim cover the inside of the toilet bowl?
No. The guardrail flag on this claim in the approved sheet states explicitly: no EPA claim exists for inside the toilet bowl. Any in-bowl content elsewhere must be presented as third-party research, not a registered claim.
What does the soil-load note mean?
The 4306 ppm / 4-minute claim was tested with 0.25% Bovine Serum Albumin, 0.08% Bovine Mucin, and 0.35% Yeast Extract added to the test surface, per the approved claims sheet.
Available in two tablet sizes
PurOne 3.3g, 200-count tub
PurOne 13.1g, loose pack
Both dissolve in water to the concentration your protocol requires. Concentrated tablets remove the cost and weight of shipping water, and the dilution chart converts tablet count to available chlorine.
Go deeper on a specific pathogen
Take this to your committee
Need help matching a claim to your protocol?
Our healthcare team will walk your environmental services staff through a live training session covering concentration, contact time, and application technique. About 45 minutes, and there is no cost.
Request a sample EVS trainingAll efficacy claims on this page 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. PurOne is EPA Reg. No. 71847-7 and PurTabs is EPA Reg. No. 71847-6. Always read and follow the full product label before use.