HEALTHCARE · INFECTION PREVENTION
Black mold disinfection with PurOne
PurOne is EPA-registered (EPA Reg. 71847-7) against Stachybotrys chartarum, Penicillium chrysogenum, Penicillium spinulosum, and Aspergillus niger on hard, non-porous surfaces.
EPA REG. 71847-7 · Black mold + 3 related species · 4306 ppm / 4 min
What PurOne is registered for
EPA REG. 71847-7
Stachybotrys chartarum, commonly called black mold. Alongside: Penicillium chrysogenum, Penicillium spinulosum, and Aspergillus niger — all four registered at the same concentration and contact time.
| Organism | PPM | Contact time | |
|---|---|---|---|
| Aspergillus niger | 4306 | 4 min | |
| Penicillium chrysogenum | 4306 | 4 min | |
| Penicillium spinulosum | 4306 | 4 min | |
| Stachybotrys chartarum | 4306 | 4 min |
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.
4306 ppm available chlorine for all four registered species. Tablet counts and water volumes are on the dilution chart.
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Apply and hold.
Non-porous 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 misses three-dimensional surfaces. Electrostatic application reaches IV poles, wheelchair frames, and other complex geometry.
Frequently asked
Is PurOne effective against black mold?
Yes. PurOne is EPA-registered against Stachybotrys chartarum, commonly called black mold, plus Penicillium chrysogenum, Penicillium spinulosum, and Aspergillus niger, on hard, non-porous surfaces.
What contact time does black mold require?
4306 ppm with a 4-minute contact time, for all four registered species.
Does PurTabs carry a mold claim?
No PurTabs mold claim appears in the approved claims sheet for any of the four organisms.
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.