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Coway Airmega 450

Ranked #3 of 13 in Best Air Purifiers for Smoke & Odor: HEPA + Carbon from IQAir, Coway, Levoit, Blueair (2026). Here is every spec we scored, where it came from, and how it compares.

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#3

Coway Airmega 450

Best for: 439 CFM smoke with an Intense Smoke+ filter option

7.0/10

What we like

  • 439 CFM smoke CADR
  • Dedicated Intense Smoke+ filter

Watch out for

  • 57.7 dB on high

Score breakdown

Smoke CADR 40%
Carbon/odor filter life 20%
Smoke or VOC filter offered 15%
CADR per watt 15%
Loudest setting 10%
Smoke CADR439 CFM
Carbon/odor filter life12 months
Smoke or VOC filter offeredYes
CADR per watt6.1 CFM/W
Loudest setting57.7 dB
CADR (smoke / dust / pollen)439 / 445 / 450
Coverage3,285 ft² at 1 air change/hr; 1,643 ft² at 2
Filter options3-in-1 Fresh Starter+, Allergen+, Intense Smoke+ (HEPA with VOC absorber + activated carbon)
Filter life1+ year
Noise23.6–57.7 dB(A)
Power72 W
Weight24.9 lb
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Specs source:

Coway Airmega 450 head-to-head

Head-to-headBlueair Blue Pure 211i Max vs Coway Airmega 450Head-to-headLevoit Core 600S vs Coway Airmega 450 Featured inBest Air Purifiers for Wildfire Smoke (2026)

How it compares

Open the full comparison table

Blueair Blue Pure 211i Max
7.8/10
#1 · 435 CFM smoke CADR from 46 W, with a SmokeBlock filter option
Levoit Core 600S
7.7/10
#2 · 391 CFM with a Smoke Remover filter option
Levoit Eleva 500X
6.7/10
#4 · Separate HEPA and carbon filters, 301 CFM smoke
Coway Airmega 350
6.0/10
#5 · 352 CFM with the same 3-in-1 filter choices as the 450
Rabbit Air MinusA2
5.1/10
#6 · A wall-mountable purifier with a Toxin Absorber or Odor Remover option
IQAir GC MultiGas XE
4.6/10
#7 · 12 lb of activated carbon for chemicals and odors
Winix C545
3.5/10
#8 · A 232 CFM purifier with a SmokeGuard filter option
IQAir HealthPro Plus XE
3.2/10
#9 · HyperHEPA plus a V5-Cell gas and odor filter
Winix 5520
3.1/10
#10 · 253 CFM smoke with a 12-month AOC carbon filter
Honeywell InSight HPA5200
2.8/10
#11 · Two HEPA filters plus optional odor and VOC filters
Winix 9800
2.8/10
#12 · A 522 sq ft AHAM-rated unit with a SmokeGuard option
Shark BreatheClear (HP162)
1.4/10
#13 · Activated carbon and a 6-year filter for up to 750 sq ft