Purifier Finder
4 questions → one primary recommendation + two alternates, traced to your answers. Hard constraints (budget ceiling, HEPA requirement) disqualify before preferences are scored.
Independent comparison. Prices are point-in-time scrapes from Amazon.com listings, not offers. CADR figures render only where two independent sources agree; ozone status is checked against the California Air Resources Board certified-device list. No health claims beyond manufacturer documentation.