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Best Air Purifiers for Large Rooms

17 match, ranked by overall score. Updated October 18, 2026.

1
Winix T810 4.0
$249
#1 in Extra Large (400+ CADR) · 410 smoke CADR · ~636 sq ft · 56 dB max · 21.0 lb

Large-room Winix with app control and a heavy carbon filter at a mid-range price.

$0.61 per CADR$90/yr filtersAHAM VerifideAuto mode1.2 lb carbonEnergy Star Spec-based
AmazonWinix Full review →
2
Levoit Core 600S 4.0
$250
#2 in Extra Large (400+ CADR) · 410 smoke CADR · ~636 sq ft · 55 dB max · 13.7 lb

Large-room CADR from a light, efficient unit; short filter life raises running cost.

$0.61 per CADR$120/yr filtersAHAM VerifideAuto modeEnergy Star Spec-based
AmazonLevoit Full review →
3
Blueair Blue Pure 211i Max 3.9
$300
#3 in Extra Large (400+ CADR) · 400 smoke CADR · ~620 sq ft · 53 dB max · 13.5 lb

Quieter and more efficient than the 211+, with app control.

$0.75 per CADR$140/yr filtersAHAM VerifideAuto modeEnergy Star Spec-based
AmazonBlueair Full review →
4
Winix 9800 3.8
$279
#4 in Extra Large (400+ CADR) · 405 smoke CADR · ~628 sq ft · 56 dB max · 22.0 lb

Large-room Winix with heavy carbon and app; slightly costlier than the T810.

$0.69 per CADR$95/yr filtersAHAM VerifideAuto mode1.2 lb carbonEnergy Star Spec-based
AmazonWinix Full review →
5
Coway Airmega 300 3.6
$279
#5 in Large (250–399 CADR) · 300 smoke CADR · ~465 sq ft · 52 dB max · 21.4 lb

Two-sided filtration with a real carbon layer; filters cost more than most.

$0.93 per CADR$110/yr filtersAHAM VerifideAuto mode1.1 lb carbonEnergy Star Spec-based
AmazonCoway Full review →
6
Coway Airmega 400 3.4
$379
#6 in Large (250–399 CADR) · 350 smoke CADR · ~542 sq ft · 52 dB max · 24.7 lb

High CADR at a quiet 52 dB maximum; annual filter cost is among the highest here.

$1.08 per CADR$130/yr filtersAHAM VerifideAuto mode1.3 lb carbonEnergy Star Spec-based
AmazonCoway Full review →
7
Coway Airmega 400S 3.4
$449
#7 in Large (250–399 CADR) · 350 smoke CADR · ~542 sq ft · 52 dB max · 24.7 lb

Airmega 400 with Wi-Fi app control.

$1.28 per CADR$130/yr filtersAHAM VerifideAuto mode1.3 lb carbonEnergy Star Spec-based
AmazonCoway Full review →
8
Levoit EverestAir 3.4
$400
#8 in Large (250–399 CADR) · 360 smoke CADR · ~558 sq ft · 52 dB max · 21.0 lb

Levoit's flagship with a laser sensor and directional vent; expensive for the CADR.

$1.11 per CADR$160/yr filtersAHAM VerifideAuto modeEnergy Star Spec-based
AmazonLevoit Full review →
9
Alen BreatheSmart 75i 3.4
$599
#9 in Large (250–399 CADR) · 347 smoke CADR · ~538 sq ft · 49 dB max · 27.0 lb

Quiet at full speed and well built; price per CADR is high.

$1.73 per CADR$99/yr filtersAHAM VerifideAuto modeEnergy Star Spec-based
AmazonAlen Full review →
10
Medify MA-112 3.4
$450
#5 in Extra Large (400+ CADR) · 950 smoke CADR · ~1472 sq ft · 60 dB max · 30.0 lb

Twin-filter unit with very high claimed CADR; not AHAM listed.

$0.47 per CADR$260/yr filters Spec-based
AmazonMedify Full review →
11
Blueair Blue Pure 211+ 3.3
$250
#10 in Large (250–399 CADR) · 350 smoke CADR · ~542 sq ft · 56 dB max · 13.0 lb

High CADR, simple one-button operation, fabric prefilter; no auto mode and short filter life.

$0.71 per CADR$140/yr filtersAHAM VerifideEnergy Star Spec-based
AmazonBlueair Full review →
12
Blueair Blue Pure 211+ Auto 3.3
$280
#11 in Large (250–399 CADR) · 350 smoke CADR · ~542 sq ft · 56 dB max · 13.0 lb

211+ with a particle sensor and auto mode.

$0.80 per CADR$140/yr filtersAHAM VerifideAuto modeEnergy Star Spec-based
AmazonBlueair Full review →
13
Honeywell HPA5300 3.2
$250
#12 in Large (250–399 CADR) · 300 smoke CADR · ~465 sq ft · 58 dB max · 18.0 lb

HPA300 internals with a particle sensor, auto mode and app.

$0.83 per CADR$60/yr filtersAHAM VerifideAuto modeEnergy Star Spec-based
AmazonHoneywell Full review →
14
Honeywell HPA300 3.1
$190
#13 in Large (250–399 CADR) · 300 smoke CADR · ~465 sq ft · 60 dB max · 17.0 lb

Proven large-room CADR at a fair price; loud and power-hungry at full speed, no auto mode.

$0.63 per CADR$60/yr filtersAHAM VerifideEnergy Star Spec-based
AmazonHoneywell Full review →
15
Medify MA-40 3.0
$170
#14 in Large (250–399 CADR) · 330 smoke CADR · ~512 sq ft · 56 dB max · 15.0 lb

High claimed CADR for the money; not AHAM listed, and filters are short-lived.

$0.52 per CADR$160/yr filters Spec-based
AmazonMedify Full review →
16
Blueair HealthProtect 7470i 2.6
$550
#16 in Large (250–399 CADR) · 300 smoke CADR · ~465 sq ft · 51 dB max · 27.0 lb

Premium build and very quiet low speed; CADR per dollar is poor.

$1.83 per CADR$240/yr filtersAHAM VerifideAuto modeEnergy Star Spec-based
AmazonBlueair Full review →
17
Smart Air Blast Mini MK II 2.5
$500
#6 in Extra Large (400+ CADR) · 435 smoke CADR · ~674 sq ft · 57 dB max · 26.0 lb

Steel-cabinet workhorse with published test data; no sensor, no app.

$1.15 per CADR$110/yr filters Spec-based
AmazonSmart Air Full review →

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