Environment · Brain health technique
Ozone-generating “air purifiers”
Evidence grade: Weak
Devices that intentionally produce ozone (sometimes marketed as ion/ozone “fresheners” or “shock” sanitizers) to neutralize odors and microbes. Ozone itself is a lung irritant and reacts with indoor chemicals to create more irritants.
- Practice
- Environment
- Principle
- Protection
- Tactic
- Air Quality Optimization
- Evidence grade
- Weak
- Strength of evidence
- Low
How to practice Ozone-generating “air purifiers”
Do not use ozone generators in occupied spaces. If a contractor performs an ozone “shock” treatment, ventilate thoroughly before re-entry. Prefer HEPA + carbon filtration and ventilation for real air cleaning.
The evidence behind Ozone-generating “air purifiers”
Strong clinical and environmental evidence shows ozone inflames airways, worsens asthma, stresses the cardiovascular system, and does not improve overall indoor air quality. Any odor reduction comes at the cost of harmful by-products and surface/material degradation.
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