UV, ionizer and ozone air cleaners
Choose air-treatment technology without creating ozone or replacing source control, ventilation and appropriate filtration.
VERT / GREEN
Start with source control, ventilation and suitable particle filtration.
JAUNE / YELLOW
UV/ionization require checking certification, actual use, maintenance and secondary emissions.
ROUGE / RED
Ozone generator sold as a residential purifier: Health Canada advises against it.
Quick triage
What the professional checks
The IAQ/HVAC professional checks target pollutant, airflow/CADR, HVAC integration, certification, maintenance and ozone/UV risk.
Official sources
Checked 2026-08-23