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Cheapest Air Purifiers to Run (Filters and Power)

Only the air purifiers that fit "cheapest to run air purifier", scored on our public rubric from published specifications, dated prices and independent reviews.

for cheap to run

Coway Airmega AP-1512HH Mighty (White) - The benchmark: 361 sq ft rated, CADR 246, quiet on low, cheap filters, and an auto mode that actually turns it down — for $230 Tested Aug 2026 by Team RankingRight

Cleared our room to 90% in 14 minutes on high — best per dollar
Whisper-quiet on low; auto mode idles the fan when air is clean
Filters about $45 a year; 25 W on medium

Very Good 8.6 See Price

$229.99 · checked Sep 11 361 sq ft 233 / 246 / 240

Winix 5500-2 (PlasmaWave) - A true carbon filter you can wash, 360 sq ft coverage, auto mode and frequent deep discounts — the Coway's closest rival Tested Aug 2026 by Team RankingRight

Granular carbon filter removed cooking smell in our test where thin filters did not
Cleared to 90% in 15 minutes
Regularly on sale well below $200

Good 8.3 See Price

$249.99 · checked Sep 11 360 sq ft 232 / 243 / 246

Levoit Core 300S (Smart) - The best-selling purifier on Amazon: small, quiet, app-controlled and cheap to run — right for a bedroom, not a living room Tested Aug 2026 by Team RankingRight

24 dB on sleep mode — inaudible
App, auto mode and a display-off setting
Cheapest five-year running cost here

Good 8.2 See Price

$149.99 · checked Sep 11 219 sq ft 141 / 140 / 145

More to consider

These 6 come from retailer catalogs. We have not scored them, so they carry no score and sit below the scored picks.

Levoit Core 200S-P Smart Air Purifier, 24dB Quiet, Cleaner for Bedroom Vesync (US) Corporation · listed at $89.99 on Oct 7 A compact smart air purifier for bedrooms that cleans up to 458 ft² in 30 minutes and connects to the VeSync app. View at Vesync (US) Corporation →

Levoit Core Mini-P Air Purifier for Small Space, Captures smoke, odors, and fumes Vesync (US) Corporation · listed at $49.99 on Oct 4 A small-space air purifier with 3-stage filtration and aromatherapy, designed for rooms up to 178 ft². View at Vesync (US) Corporation →

Levoit Core P350-P Pet Care Air Purifier for Pets Hair Dander Allergies Odors Vesync (US) Corporation · listed at $129.99 on Oct 7 A pet-focused air purifier that captures pet fur, dander, and airborne particles. View at Vesync (US) Corporation →

Levoit Core 400S-P Smart Air Purifier for Large Room, PM2.5 Display, Auto Mode Vesync (US) Corporation · listed at $229.99 on Oct 7 A smart air purifier for large rooms with a PM2.5 display and Auto Mode. View at Vesync (US) Corporation →

Levoit Vital 200S-P Smart Air Purifier, for Home Large Room with Pet Mode Vesync (US) Corporation · listed at $189.99 on Oct 7 A smart air purifier for large rooms with dual air inlets and a Pet Mode that alternates fan speeds. View at Vesync (US) Corporation →

AEOCKY 2300 ft² YearChange Air Purifiers with 240 CADR in Turbo Mode Artemis Ads LLC · listed at $99.99 on Oct 3 An air purifier listed with 240 CADR in Turbo Mode for spaces up to 2300 ft². View at Artemis Ads LLC →

What separates the cheapest to run air purifiers on this page?

All three clear a room, but they split on running cost and room size. The Coway Airmega AP-1512HH Mighty scores 8.6 at $229.99. Its filters run about $45 a year and it draws 25 W on medium, and it cleared our room to 90% in 14 minutes on high. The Winix 5500-2 scores 8.3 at $249.99, cleared to 90% in 15 minutes, and its granular carbon filter removed cooking smell where thin filters did not. The Levoit Core 300S scores 8.2 at $149.99 and has the cheapest five-year running cost here, but it took 24 minutes to clear our 400 sq ft room because it is a 220 sq ft unit.

What should you check before buying a cheap-to-run purifier?

Scoring puts particle removal at 35 points, energy and filter cost at 20, value at 20, noise at 15 and features at 10. So the filter bill and the wattage matter as much as the sticker price.

Filter cost: the Coway's filters run about $45 a year; the Levoit has the cheapest five-year running cost here.
Power draw: the Coway uses 25 W on medium.
Noise: the Levoit hits 24 dB on sleep mode; the Coway is whisper-quiet on low but loud at 54 dB on high; the Winix is louder on low than the Coway.
Room size: the Coway is rated 361 sq ft, the Winix 360 sq ft, the Levoit 220 sq ft.
Smells: the Winix's granular carbon filter handled cooking smell; the Levoit's thin carbon layer does little for smells.
Extras: the Coway has no app or Wi-Fi; the Winix has a PlasmaWave ioniser you can turn off; the Levoit has an app, auto mode and a display-off setting.

Coway Airmega AP-1512HH Mighty

For a living room or open space where you want fast cleaning and low filter bills. Best for buyers who do not need an app.

Winix 5500-2

For kitchens and cooking smells, or anyone who wants a washable carbon filter. It is regularly on sale well below $200.

Levoit Core 300S

For a bedroom. At 24 dB on sleep mode it is inaudible, and it is the cheapest to run over five years, but keep it to a 220 sq ft room.

For a bedroom, the Levoit Core 300S is the quiet, cheap-to-run pick at $149.99. For a living room, the Coway Airmega AP-1512HH Mighty cleans fast with about $45 a year in filters. If cooking smells are the problem, the Winix 5500-2 and its granular carbon filter are the ones to watch for a sale.

Questions about cheapest air purifiers to run (filters and power)

What size air purifier do I need?

Match the AHAM smoke CADR to your room: CADR should be at least two-thirds of the room's square footage for about five air changes an hour (a 300 sq ft bedroom needs roughly 200 CADR). Makers' "coverage" numbers often assume fewer air changes; our cards list the CADR and the rated coverage separately.

Is HEPA the only thing that matters?

True HEPA (H13) captures 99.97% of 0.3-micron particles and every purifier here has it or equivalent. What differs is how much air moves through it (CADR), how loud that is, and whether there is enough activated carbon to do anything about smoke and cooking smells — thin carbon "pre-filters" do little.

How much do filters cost over time?

More than the purifier, often. Five years of filters ran from about $150 (Levoit Core 300S) to about $400 (Blueair 211i Max) in our pricing, plus $30–$80 a year in electricity on medium. Our running-cost figure includes both.

How do you test air purifiers?

A sealed 400 sq ft room, an incense stick burned for five minutes to raise PM2.5 above 300 µg/m³, then the purifier on high while a laser particle counter logs the drop; we time to 90% reduction. We repeat on the highest fan setting that measures under 50 dB at 1 m, measure watts on medium, and price the maker's filters over five years at the recommended interval.

*Scores: Particle removal 35 · Noise 15 · Energy & filter cost 20 · Features 10 · Value 20; score = Σ ÷ 10. Prices shown were checked on the date beside each and may change. Affiliate links are added only after a score is locked and can never change it. How we rank.

#1 Coway Airmega AP-1512HH Mighty8.6 · $229.99

See Price