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Air Purifier Placement in 6 Steps: Keep the Airflow Clear

EPA guidance recommends placing a portable air cleaner in frequently occupied rooms and keeping airflow clear, with attention to sizing and ozone risks.

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Wikimedia Commons · © Home Air Quality Guides (homeairguides.com), CC BY-SA 2.0 / Wikimedia Commons, unmodified · CC BY-SA 2.0 ↗

A single portable air cleaner cannot remove all indoor pollutants. Source control and clean-air ventilation come first; a purifier supplements those steps. Always follow your model's placement manual.

Your try-it-at-home checklist

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1. Prioritize the room where people spend the most time, such as a bedroom or living room. A portable cleaner generally serves one area.
2. Check whether your unit is designed for a floor or tabletop, then choose a stable location permitted by its manual.
3. Keep curtains, bedding, boxes and bulky furniture clear of the air intake and outlet.
4. If the fan causes an uncomfortable draft, redirect the outlet or reposition the unit without blocking airflow.
5. Match the cleaner's CADR or manufacturer-rated room size to your room. Inspect and replace filters according to the specific model manual.
6. Avoid units that intentionally produce ozone in occupied rooms. Continue source reduction and safe ventilation; a purifier is only a supplement.

US EPAGuide to Air Cleaners in the Home ↗EPA guide: portable cleaners supplement source control and clean ventilation; best in rooms used most; keep away from curtains; don't block airflow; choose appropriate CADR; avoid ozone generators.US EPAAir Cleaners, HVAC Filters, and Respiratory Viruses — placement ↗EPA placement in room where people spend most of time, with exceptions for vulnerable or isolated people.Wikimedia CommonsAir Purifier (Levoit LV-H133) (49318568107).jpg ↗Home Air Quality Guides Flickr image reviewed and released CC BY-SA 2.0, attribution includes homeairguides.com; unmodified original shown.Wikimedia CommonsCommons reuse / hotlinking technical policy ↗Source-level direct-link permission checked separately from file-specific CC BY-SA 2.0 credit and license.

Your try-it-at-home checklist

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