Best ionic air purifiers for a room

Top pick: Ionic Pro Platinum (TA750) tower. It's the only one here with real room numbers behind it — rated for about 138 sq ft with measured smoke and dust CADR — so it actually moves air through a room rather than just emitting ions. Filterless, so no replacement filters to buy.

Who the others suit:

• Ionic Pro Compact — smaller bedrooms and quiet overnight use; rated around 250 sq ft and sips under 12 watts.
• Ionic Pro Platinum TA740 — same tower family, three speeds, if you want a step up in coverage.
• Lab Charge Ionic Air Purifiers — the one to pick if you want a HEPA filter alongside the ionizer, not ions alone.
• Clarifion Air Ionizer / HAPHID plug-in — plug-in spot freshening for a desk, closet or small bathroom, not whole-room cleaning.
• Multi-packs (LabCharge, 5-piece sets) — one per room or for gifting.

One caveat worth knowing: ionizers produce trace ozone and don't capture particles the way a HEPA unit does, so for allergies or smoke a HEPA-plus-ionizer model is the safer bet.