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FilterScored

Air purifiers, scored

These are the purifiers we rate highest, best score first. The "filters per year" figure is what the replacement cartridges actually cost you over a year - we work it out from real prices, never a guess - so a cheap unit with pricey filters can't hide from you here.

Units ranked by composite score, best first, with filters/yr.
ScoreUnitFilters/yr
8.5Coway Airmega AP-1512HH Mighty$57
7.1Levoit Core 300S$45
7.1Levoit Core 400S$75
7.1Levoit Vital 200S$50
6.9GermGuardian AC4825E$25
6.3Alen BreatheSmart 75i$99
5.9Medify MA-40$120
5.2Winix 5500-2$59
5.2Winix AM90$70
5.0Honeywell HPA300$154
4.9Medify MA-25$150
4.4Blueair Blue Pure 411$48
4.3Dyson Purifier Big+Quiet Formaldehyde (BP03)$79
4.2Coway Airmega 200M$57
4.2Dyson Purifier Cool TP07$80
4.0Coway Airmega 400$129
3.9Austin Air HealthMate HM400$79
3.9Alen BreatheSmart Flex$69
3.6IQAir HealthPro Plus$195
3.3Shark Air Purifier 6 (HE601)$90
2.7Rabbit Air MinusA2 (SPA-780A)$95
2.4Molekule Air Pro$350
2.2Blueair Blue Pure 211+$140
1.5MOOKA Air Purifier B-D02L$90
0.0Airthereal MA10K-PROn/a

FAQ

How are these air purifiers ranked?
Best score first. Every score is our opinion under the published air rubric, computed from inputs you can check yourself - AHAM-verified CADR, ozone safety, and the real cost of replacement filters. The full score-event breakdown is on each scorecard.
What does the Filters/yr column mean?
It is what the replacement cartridges actually cost over a year, worked out from real, dated prices - never a guess. When we cannot find a real price, the column shows n/a: a missing price is a labeled data gap, not an estimate.
Why do some well-known air purifiers score low here?
Hard fails cap a score: an ozone generator sold as an air purifier, an uncertified lead or PFAS claim, or a claimed room size the unit's own CADR cannot support. The cap and the reason stay visible in the scorecard breakdown - nothing gets quietly buried.
Are these scores facts or opinions?
The scores are our editorial opinion under the FilterScored rubric. The inputs behind them are verifiable facts - certifications checked on the official registries, AHAM-verified CADR, and sourced prices - and you can recompute any score from the visible score-events.