Is Puraclenz PCO Harmful? No.

Tested, Certified, and Scientifically Proven for Everyday Use

When people hear “Photocatalytic Oxidation” (PCO), their first concern is often whether it's appropriate for use in their living or working spaces. Does it emit ozone? Can it affect people, pets, or plants?

Puraclenz has gone beyond industry expectations by developing a patented PCO purification technology that is certified for zero ozone emissions, proven through third-party testing to not affect plant or animal cells, and engineered to avoid unwanted by-products. Here’s how Puraclenz addresses common concerns:

✅ Certified for Zero Ozone Emissions

Unlike traditional PCO purifiers that may produce ozone, Puraclenz units have been certified under UL 2998—the leading industry standard verifying zero ozone emissions. You can view our certificate here: Zero Ozone Certificate.

✅ Does Not Affect Plant or Animal Cells

Independent lab testing confirms that Puraclenz’s patented PCO core does not cause any measurable impact on plant or animal cells, including human lung cells. The results show no cytotoxic effects, reinforcing that Puraclenz is appropriate for continuous use in spaces where people and pets are present.

See more on our lab testing here: PCO Technology Safety Studies

✅ Engineered to Avoid Harmful By-Products

Puraclenz has re-engineered traditional PCO with patented design innovations that avoid generating ozone, ultrafine particles, or secondary volatile organic compounds (VOCs). Our proprietary core uses advanced materials and optimized light activation to deactivate pollutants without producing unwanted side effects.

Learn more about how we reimagined PCO purification: No By-Products Blog

Conclusion

Puraclenz offers a science-backed purification solution for air and surfaces. Our patented PCO technology undergoes rigorous third-party testing and meets leading certifications to ensure it deactivates indoor pollutants—including mold ¹, volatile organic compounds, and bacteria ³—without generating harmful by-products like ozone or ultrafine particles.

Recommended Products

Photon

Air & Surface Purifier

Core

Air & Surface Purifier + HEPA

Sources & Further Reading

• How Puraclenz PCO Technology Is Proven to Not Affect Plant and Animal Cells
• Puraclenz Air Purifiers Certified UL 2998 – Zero Ozone
• How Puraclenz Reinvented PCO to Avoid Harmful By-Products

At the heart of all Puraclenz purifiers is our patented Recharge Cell that cleans your space with ions. Laboratory tests against pollutants were conducted with a model P3000 unit that uses the same Recharge Cell that powers all Core and Photon purifiers. Recharge Cell (model R0002) powers all Puraclenz purifiers (models C750, P3000X, P3000, P1500, and P750).

¹ In independent laboratory testing, the Photon purifier was 99.75% effective at reducing Candida albicans from surfaces and 95.1% effective at reducing Aspergillus brasiliensis in the air.

² In independent laboratory testing, the Photon purifier was 99.4% effective at reducing MS2 bacteriophage virus in the air and 58% effective at reducing SARS-CoV-2 on surfaces.

³ In independent laboratory testing, the Photon purifier was 99.7% effective at reducing dangerous bacteria Methicillin-Resistant Staphylococcus epidermidis in the air and 95% effective at reducing dangerous bacteria Staphylococcus aureus on surfaces.

⁴ Non-living sources such as pet dander, cockroach matter allergens, dust mite matter allergens.