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Ozone/ionizers, certifications, safe operation, and standards that matter for indoor devices.

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Isometric illustration of a home air purifier in a clean living room

HEPA, CADR, and Other Certifications: A Buyer’s Cheat Sheet

February 2, 2026 · 13 min read

Learn what HEPA, CADR, and key air purifier certifications really mean so you can compare options, size units for rooms, and avoid common buying mistakes.

Isometric air purifier in a tidy room suggesting ozone free safety

UL 2998 ‘Zero Ozone’ Explained (What It Certifies and What It Doesn’t)

February 1, 2026 · 12 min read

Learn what UL 2998 zero ozone certification means for air purifiers and UV/ionizing devices, how it’s tested, and…

Isometric illustration of a modern air purifier in a tidy room

Do Air Purifiers Produce Ozone? What to Avoid and What to Buy Instead

January 31, 2026 · 14 min read

Learn which air purifiers can produce ozone, how to spot risky technologies, and how to choose safer, effective…

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