Ozone-Generating Air Purifiers
Moderate burden — Ozone-Generating Air Purifiers adds a moderate, reducible exposure.
'Ionic' or ozone air cleaners run in an occupied room.
The breakdown
Each driver rated 0 (none) to 10 (worst)
Evidence strength: strong · Detox Score = 100 − hazard×4.6 − exposure×3.4 − persistence×2.6, clamped 1–100.
What this means for you
A Detox Score of 56 places ozone-generating air purifiers in the Moderate band. The chemical-hazard rating is what drives the score down. Ozone is a lung irritant, and the EPA's review concluded these devices do not control indoor pollutants effectively at concentrations that stay below public-health limits. Some ionisers also make ozone as a by-product, then sell the resulting smell as 'fresh air' when it is the irritant itself.
Frequently asked questions
Is ozone-generating air purifiers a toxic exposure?
Ozone-Generating Air Purifiers has a Detox Score of 56 out of 100 (Moderate burden), which means it adds a moderate, reducible exposure. Ozone is a lung irritant, and the EPA's review concluded these devices do not control indoor pollutants effectively at concentrations that stay below public-health limits. Some ionisers also make ozone as a by-product, then sell the resulting smell as 'fresh air' when it is the irritant itself.
What is a safer alternative to ozone-generating air purifiers?
A lower-exposure swap for ozone-generating air purifiers is: A true-HEPA purifier with activated carbon, and open windows. Ozone is a lung irritant, and the EPA's review concluded these devices do not control indoor pollutants effectively at concentrations that stay below public-health limits. Some ionisers also make ozone as a by-product, then sell the resulting smell as 'fresh air' when it is the irritant itself.