Home Appliances comparisons
Air purifiers comparisons
Compare 13 air purifiers head to head across 11 tracked specifications. Every matchup is scored strictly from published maker spec sheets with no lab test estimates. For a flagship matchup, explore the Alen BreatheSmart 75i Large Room Air Purifier vs Dyson Purifier Hot+Cool Formaldehyde HP09 breakdown.
Catalog as of September 1, 2026 · 78 published matchups
Best for each use
Use-case leaders scored across 3 buying priorities
Air purifiers matchups
78 published comparisons
Alen BreatheSmart 75i Large Room Air Purifier vs Blueair Blue Pure 211+ Auto
Blueair Blue Pure 211+ Auto leads 3 to 2 on the 5 rankable specs and costs $410 less, which makes it the straightforward pick.
Alen BreatheSmart 75i Large Room Air Purifier vs Blueair Blue Pure 311i Max
They split the 4 rankable specs evenly, so cost decides it: Blueair Blue Pure 311i Max costs $520 less.
Alen BreatheSmart 75i Large Room Air Purifier vs Blueair Protect 7470i
Alen BreatheSmart 75i Large Room Air Purifier leads 4 to 1 on the 5 rankable specs, but Blueair Protect 7470i costs $100 less.
Alen BreatheSmart 75i Large Room Air Purifier vs Coway Airmega 250
Alen BreatheSmart 75i Large Room Air Purifier leads 3 to 2 on the 5 rankable specs, but Coway Airmega 250 costs $350 less.
Alen BreatheSmart 75i Large Room Air Purifier vs Coway Airmega 400
Coway Airmega 400 leads 3 to 1 on the 4 rankable specs and costs $200 less, which makes it the straightforward pick. Most of the 11 attributes tracked here are descriptive rather than numeric.
Alen BreatheSmart 75i Large Room Air Purifier vs Coway Airmega AP-1512HH Mighty
Alen BreatheSmart 75i Large Room Air Purifier leads 3 to 2 on the 5 rankable specs, but Coway Airmega AP-1512HH Mighty costs $520 less.
Alen BreatheSmart 75i Large Room Air Purifier vs Dyson Purifier Hot+Cool Formaldehyde HP09
Alen BreatheSmart 75i Large Room Air Purifier leads 4 to 1 on the 5 rankable specs and costs $50 less, which makes it the straightforward pick.
Alen BreatheSmart 75i Large Room Air Purifier vs Honeywell HPA300 HEPA Air Purifier
Alen BreatheSmart 75i Large Room Air Purifier leads 4 to 1 on the 5 rankable specs, but Honeywell HPA300 HEPA Air Purifier costs $500 less.
Alen BreatheSmart 75i Large Room Air Purifier vs Levoit Core 300S Smart True HEPA Air Purifier
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 300S Smart True HEPA Air Purifier costs $600 less.
Alen BreatheSmart 75i Large Room Air Purifier vs Levoit Core 400S
Alen BreatheSmart 75i Large Room Air Purifier leads 3 to 2 on the 5 rankable specs, but Levoit Core 400S costs $530 less.
Alen BreatheSmart 75i Large Room Air Purifier vs Levoit Core 600S Smart True HEPA
Levoit Core 600S Smart True HEPA leads 3 to 2 on the 5 rankable specs and costs $450 less, which makes it the straightforward pick.
Alen BreatheSmart 75i Large Room Air Purifier vs Winix 5500-2 Air Purifier
Alen BreatheSmart 75i Large Room Air Purifier leads 4 to 1 on the 5 rankable specs, but Winix 5500-2 Air Purifier costs $590 less.
Blueair Blue Pure 211+ Auto vs Blueair Blue Pure 311i Max
Blueair Blue Pure 211+ Auto leads 2 to 1 on the 3 rankable specs, but Blueair Blue Pure 311i Max costs $110 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Blueair Blue Pure 211+ Auto vs Coway Airmega 250
Coway Airmega 250 leads 4 to 2 on the 6 rankable specs, but Blueair Blue Pure 211+ Auto costs $60 less.
Blueair Blue Pure 211+ Auto vs Honeywell HPA300 HEPA Air Purifier
Blueair Blue Pure 211+ Auto leads 5 to 1 on the 6 rankable specs, but Honeywell HPA300 HEPA Air Purifier costs $90 less.
Blueair Blue Pure 211+ Auto vs Levoit Core 300S Smart True HEPA Air Purifier
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 300S Smart True HEPA Air Purifier costs $190 less.
Blueair Blue Pure 311i Max vs Coway Airmega 250
Coway Airmega 250 leads 3 to 2 on the 5 rankable specs, but Blueair Blue Pure 311i Max costs $170 less.
Blueair Protect 7470i vs Blueair Blue Pure 211+ Auto
Blueair Protect 7470i leads 4 to 2 on the 6 rankable specs, but Blueair Blue Pure 211+ Auto costs $310 less.
Blueair Protect 7470i vs Blueair Blue Pure 311i Max
Blueair Protect 7470i leads 4 to 1 on the 5 rankable specs, but Blueair Blue Pure 311i Max costs $420 less.
Blueair Protect 7470i vs Coway Airmega 250
Blueair Protect 7470i leads 2 to 1 on the 3 rankable specs, but Coway Airmega 250 costs $250 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Blueair Protect 7470i vs Coway Airmega 400
Coway Airmega 400 leads 3 to 0 on the 3 rankable specs and costs $100 less, which makes it the straightforward pick. Most of the 11 attributes tracked here are descriptive rather than numeric.
Blueair Protect 7470i vs Coway Airmega AP-1512HH Mighty
Blueair Protect 7470i leads 4 to 1 on the 5 rankable specs, but Coway Airmega AP-1512HH Mighty costs $420 less.
Blueair Protect 7470i vs Dyson Purifier Hot+Cool Formaldehyde HP09
Blueair Protect 7470i leads 4 to 1 on the 5 rankable specs and costs $150 less, which makes it the straightforward pick.
Blueair Protect 7470i vs Honeywell HPA300 HEPA Air Purifier
Blueair Protect 7470i leads 3 to 2 on the 5 rankable specs, but Honeywell HPA300 HEPA Air Purifier costs $400 less.
Blueair Protect 7470i vs Levoit Core 300S Smart True HEPA Air Purifier
Blueair Protect 7470i leads 3 to 1 on the 4 rankable specs, but Levoit Core 300S Smart True HEPA Air Purifier costs $500 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Blueair Protect 7470i vs Levoit Core 400S
Blueair Protect 7470i leads 4 to 1 on the 5 rankable specs, but Levoit Core 400S costs $430 less.
Blueair Protect 7470i vs Levoit Core 600S Smart True HEPA
Levoit Core 600S Smart True HEPA leads 3 to 2 on the 5 rankable specs and costs $350 less, which makes it the straightforward pick.
Blueair Protect 7470i vs Winix 5500-2 Air Purifier
Blueair Protect 7470i leads 4 to 1 on the 5 rankable specs, but Winix 5500-2 Air Purifier costs $490 less.
Coway Airmega 400 vs Blueair Blue Pure 211+ Auto
Coway Airmega 400 leads 4 to 2 on the 6 rankable specs, but Blueair Blue Pure 211+ Auto costs $210 less.
Coway Airmega 400 vs Blueair Blue Pure 311i Max
Coway Airmega 400 leads 4 to 1 on the 5 rankable specs, but Blueair Blue Pure 311i Max costs $320 less.
Coway Airmega 400 vs Coway Airmega 250
Coway Airmega 400 leads 2 to 1 on the 3 rankable specs, but Coway Airmega 250 costs $150 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Coway Airmega 400 vs Coway Airmega AP-1512HH Mighty
Coway Airmega 400 leads 4 to 1 on the 5 rankable specs, but Coway Airmega AP-1512HH Mighty costs $320 less.
Coway Airmega 400 vs Dyson Purifier Hot+Cool Formaldehyde HP09
Coway Airmega 400 leads 4 to 1 on the 5 rankable specs and costs $250 less, which makes it the straightforward pick.
Coway Airmega 400 vs Honeywell HPA300 HEPA Air Purifier
Coway Airmega 400 leads 4 to 1 on the 5 rankable specs, but Honeywell HPA300 HEPA Air Purifier costs $300 less.
Coway Airmega 400 vs Levoit Core 300S Smart True HEPA Air Purifier
Coway Airmega 400 leads 3 to 1 on the 4 rankable specs, but Levoit Core 300S Smart True HEPA Air Purifier costs $400 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Coway Airmega 400 vs Levoit Core 400S
Coway Airmega 400 leads 4 to 1 on the 5 rankable specs, but Levoit Core 400S costs $330 less.
Coway Airmega 400 vs Levoit Core 600S Smart True HEPA
Levoit Core 600S Smart True HEPA leads 3 to 2 on the 5 rankable specs and costs $250 less, which makes it the straightforward pick.
Coway Airmega 400 vs Winix 5500-2 Air Purifier
Coway Airmega 400 leads 4 to 1 on the 5 rankable specs, but Winix 5500-2 Air Purifier costs $390 less.
Coway Airmega AP-1512HH Mighty vs Blueair Blue Pure 211+ Auto
They split the 6 rankable specs evenly, so cost decides it: Coway Airmega AP-1512HH Mighty costs $110 less.
Coway Airmega AP-1512HH Mighty vs Blueair Blue Pure 311i Max
Blueair Blue Pure 311i Max leads 4 to 1 on the 5 rankable specs.
Coway Airmega AP-1512HH Mighty vs Coway Airmega 250
Coway Airmega 250 leads 4 to 1 on the 5 rankable specs, but Coway Airmega AP-1512HH Mighty costs $170 less.
Coway Airmega AP-1512HH Mighty vs Honeywell HPA300 HEPA Air Purifier
They split the 6 rankable specs evenly, so cost decides it: Coway Airmega AP-1512HH Mighty costs $20 less.
Coway Airmega AP-1512HH Mighty vs Levoit Core 300S Smart True HEPA Air Purifier
Coway Airmega AP-1512HH Mighty leads 3 to 2 on the 5 rankable specs, but Levoit Core 300S Smart True HEPA Air Purifier costs $80 less.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Blueair Blue Pure 211+ Auto
Blueair Blue Pure 211+ Auto leads 4 to 1 on the 5 rankable specs and costs $460 less, which makes it the straightforward pick.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Blueair Blue Pure 311i Max
Blueair Blue Pure 311i Max leads 3 to 1 on the 4 rankable specs and costs $570 less, which makes it the straightforward pick. Most of the 11 attributes tracked here are descriptive rather than numeric.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Coway Airmega 250
Coway Airmega 250 leads 4 to 1 on the 5 rankable specs and costs $400 less, which makes it the straightforward pick.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Coway Airmega AP-1512HH Mighty
Coway Airmega AP-1512HH Mighty leads 4 to 1 on the 5 rankable specs and costs $570 less, which makes it the straightforward pick.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Honeywell HPA300 HEPA Air Purifier
They split the 6 rankable specs evenly, so cost decides it: Honeywell HPA300 HEPA Air Purifier costs $550 less.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Levoit Core 300S Smart True HEPA Air Purifier
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 300S Smart True HEPA Air Purifier costs $650 less.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Levoit Core 400S
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 400S costs $580 less.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Levoit Core 600S Smart True HEPA
Levoit Core 600S Smart True HEPA leads 3 to 1 on the 4 rankable specs and costs $500 less, which makes it the straightforward pick. Most of the 11 attributes tracked here are descriptive rather than numeric.
Dyson Purifier Hot+Cool Formaldehyde HP09 vs Winix 5500-2 Air Purifier
They split the 4 rankable specs evenly, so cost decides it: Winix 5500-2 Air Purifier costs $640 less.
Honeywell HPA300 HEPA Air Purifier vs Blueair Blue Pure 311i Max
Honeywell HPA300 HEPA Air Purifier leads 3 to 2 on the 5 rankable specs, but Blueair Blue Pure 311i Max costs $20 less.
Honeywell HPA300 HEPA Air Purifier vs Coway Airmega 250
Coway Airmega 250 leads 3 to 2 on the 5 rankable specs, but Honeywell HPA300 HEPA Air Purifier costs $150 less.
Levoit Core 300S Smart True HEPA Air Purifier vs Blueair Blue Pure 311i Max
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 300S Smart True HEPA Air Purifier costs $80 less.
Levoit Core 300S Smart True HEPA Air Purifier vs Coway Airmega 250
Coway Airmega 250 leads 3 to 1 on the 4 rankable specs, but Levoit Core 300S Smart True HEPA Air Purifier costs $250 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Levoit Core 300S Smart True HEPA Air Purifier vs Honeywell HPA300 HEPA Air Purifier
Honeywell HPA300 HEPA Air Purifier leads 3 to 2 on the 5 rankable specs, but Levoit Core 300S Smart True HEPA Air Purifier costs $100 less.
Levoit Core 400S vs Blueair Blue Pure 211+ Auto
Blueair Blue Pure 211+ Auto leads 4 to 1 on the 5 rankable specs, but Levoit Core 400S costs $120 less.
Levoit Core 400S vs Blueair Blue Pure 311i Max
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 400S costs $10 less.
Levoit Core 400S vs Coway Airmega 250
Coway Airmega 250 leads 3 to 2 on the 5 rankable specs, but Levoit Core 400S costs $180 less.
Levoit Core 400S vs Coway Airmega AP-1512HH Mighty
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 400S costs $10 less.
Levoit Core 400S vs Honeywell HPA300 HEPA Air Purifier
They split the 6 rankable specs evenly, so cost decides it: Levoit Core 400S costs $30 less.
Levoit Core 400S vs Levoit Core 300S Smart True HEPA Air Purifier
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 300S Smart True HEPA Air Purifier costs $70 less.
Levoit Core 600S Smart True HEPA vs Blueair Blue Pure 211+ Auto
Levoit Core 600S Smart True HEPA leads 3 to 2 on the 5 rankable specs and costs $40 less, which makes it the straightforward pick.
Levoit Core 600S Smart True HEPA vs Blueair Blue Pure 311i Max
They split the 4 rankable specs evenly, so cost decides it: Blueair Blue Pure 311i Max costs $70 less.
Levoit Core 600S Smart True HEPA vs Coway Airmega 250
Levoit Core 600S Smart True HEPA leads 3 to 2 on the 5 rankable specs and costs $100 less, which makes it the straightforward pick.
Levoit Core 600S Smart True HEPA vs Coway Airmega AP-1512HH Mighty
Coway Airmega AP-1512HH Mighty leads 3 to 2 on the 5 rankable specs and costs $70 less, which makes it the straightforward pick.
Levoit Core 600S Smart True HEPA vs Honeywell HPA300 HEPA Air Purifier
Levoit Core 600S Smart True HEPA leads 5 to 1 on the 6 rankable specs, but Honeywell HPA300 HEPA Air Purifier costs $50 less.
Levoit Core 600S Smart True HEPA vs Levoit Core 300S Smart True HEPA Air Purifier
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 300S Smart True HEPA Air Purifier costs $150 less.
Levoit Core 600S Smart True HEPA vs Levoit Core 400S
Levoit Core 600S Smart True HEPA leads 3 to 1 on the 4 rankable specs, but Levoit Core 400S costs $80 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Levoit Core 600S Smart True HEPA vs Winix 5500-2 Air Purifier
Levoit Core 600S Smart True HEPA leads 4 to 0 on the 4 rankable specs, but Winix 5500-2 Air Purifier costs $140 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Winix 5500-2 Air Purifier vs Blueair Blue Pure 211+ Auto
Blueair Blue Pure 211+ Auto leads 4 to 1 on the 5 rankable specs, but Winix 5500-2 Air Purifier costs $180 less.
Winix 5500-2 Air Purifier vs Blueair Blue Pure 311i Max
Blueair Blue Pure 311i Max leads 4 to 0 on the 4 rankable specs, but Winix 5500-2 Air Purifier costs $70 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
Winix 5500-2 Air Purifier vs Coway Airmega 250
Coway Airmega 250 leads 4 to 1 on the 5 rankable specs, but Winix 5500-2 Air Purifier costs $240 less.
Winix 5500-2 Air Purifier vs Coway Airmega AP-1512HH Mighty
Coway Airmega AP-1512HH Mighty leads 5 to 0 on the 5 rankable specs, but Winix 5500-2 Air Purifier costs $70 less.
Winix 5500-2 Air Purifier vs Honeywell HPA300 HEPA Air Purifier
They split the 6 rankable specs evenly, so cost decides it: Winix 5500-2 Air Purifier costs $90 less.
Winix 5500-2 Air Purifier vs Levoit Core 300S Smart True HEPA Air Purifier
They split the 4 rankable specs evenly, so cost decides it: Levoit Core 300S Smart True HEPA Air Purifier costs $10 less.
Winix 5500-2 Air Purifier vs Levoit Core 400S
Levoit Core 400S leads 4 to 0 on the 4 rankable specs, but Winix 5500-2 Air Purifier costs $60 less. Most of the 11 attributes tracked here are descriptive rather than numeric.
All air purifiers in the catalog
13 products · sorted by list price
$149
Compare vs Alen$159
Compare vs AlenLevoit
Levoit Core 400S
$219
Compare vs Alen$229
Compare vs AlenBlueair
Blueair Blue Pure 311i Max
$229
Compare vs AlenHoneywell
Honeywell HPA300 HEPA Air Purifier
$249
Compare vs Alen$299
Compare vs AlenBlueair
Blueair Blue Pure 211+ Auto
$339
Compare vs AlenCoway
Coway Airmega 250
$399
Compare vs AlenCoway
Coway Airmega 400
$549
Compare vs AlenBlueair
Blueair Protect 7470i
$649
Compare vs Alen$799
Compare vs Alen