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Best Extra Large (400+ CADR) Air Purifiers

Great rooms, basements and open floor plans. 5 ranked by overall score; the top three are the picks for most people.

Updated October 18, 2026. Best value in this class: Medify MA-112. Cheapest: Levoit Core 600S at $250.

Blueair Blue Pure 211i Max

#1 of 5 in extra large

$300

3.9

400 cfmsmoke CADR

620 sq ftAHAM room size

53 dBat full speed

52 Wmax power

Value Quietness Filter cost

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

One air change of a 300 sq ft room in about 6 min$140 a year in filters$1,000 to own for 5 yearsAHAM Verifide CADR

Amazon · $300 Blueair Full review

Levoit Core 600S

#2 of 5 in extra large · independently tested

$250

3.8

410 cfmsmoke CADR

636 sq ftAHAM room size

55 dBat full speed

49 Wmax power

Value Quietness Filter cost

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

One air change of a 300 sq ft room in about 6 min$120 a year in filters$850 to own for 5 yearsAHAM Verifide CADR

Amazon · $250 Levoit Full review

Winix 9800

#3 of 5 in extra large

$279

3.8

405 cfmsmoke CADR

628 sq ftAHAM room size

56 dBat full speed

85 Wmax power

Value Quietness Filter cost

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

One air change of a 300 sq ft room in about 6 min$95 a year in filters$754 to own for 5 yearsAHAM Verifide CADR1.2 lb activated carbon

Amazon · $279 Winix Full review

Medify MA-112

#4 of 5 in extra large

$450

3.4

950 cfmsmoke CADR

1,472 sq ftAHAM room size

60 dBat full speed

95 Wmax power

Value Quietness Filter cost

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

One air change of a 300 sq ft room in about 3 min$260 a year in filters$1,750 to own for 5 years

Amazon · $450 Medify Full review

Smart Air Blast Mini MK II

#5 of 5 in extra large

$500

2.5

435 cfmsmoke CADR

674 sq ftAHAM room size

57 dBat full speed

65 Wmax power

Value Quietness Filter cost

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

One air change of a 300 sq ft room in about 6 min$110 a year in filters$1,050 to own for 5 years

Amazon · $500 Smart Air Full review

Every spec, side by side

#	Model	Smoke CADR	Dust	Pollen	W	dB max	Filters/yr	$/CADR	Score
1	Blueair Blue Pure 211i Max	400	400	400	52	53	$140	0.8	3.9
2	Levoit Core 600S	410	400	405	49	55	$120	0.6	3.8
3	Winix 9800	405	410	408	85	56	$95	0.7	3.8
4	Medify MA-112	950	950	950	95	60	$260	0.5	3.4
5	Smart Air Blast Mini MK II	435	440	438	65	57	$110	1.1	2.5

Other room-size classes

Compact (under 130 CADR)Medium (130–249 CADR)Large (250–399 CADR)