Best air purifiers for 1000 sq ft and dust

Target smoke CADR 400 using 3 ACH and an 8 ft ceiling. Results come from AHAM Verifide CADR rows; CARB matches are marked when found.

Required smoke CADR = sqft x ceiling height x ACH / 60
1000 x 8 x 3 / 60 = 400
AHAM 2/3 room-size cross-check: CADR >= 667

Model	Smoke CADR	AHAM room	CARB	Cost/CADR	Annual filter
Blueair Blue Signature 55 CADR above target	455	705 sq ft	Matched	$0.99	N/A	Check price
Medify Air MA-112 Pro 200 CADR above target	600	930 sq ft	Check CARB	$0.99	N/A	Check price
Medify Air MA-112 194 CADR above target	594	921 sq ft	Check CARB	$1.00	N/A	Check price
Blueair 36131111100 (3650i) 10 CADR above target	410	635 sq ft	Check CARB	N/A	N/A	Check price
Jafanda JF888 23 CADR above target	423	656 sq ft	Check CARB	N/A	N/A	Check price
Lichen Air Lichen Air 34 CADR above target	434	673 sq ft	Check CARB	N/A	N/A	Check price
Blueair 3613111100 (Pure Blue 211i Max) 35 CADR above target	435	674 sq ft	Check CARB	N/A	N/A	Check price
Blueair 7711371000 (7710i US) 35 CADR above target	435	674 sq ft	Check CARB	N/A	N/A	Check price
Blueair 7711371000 (7710i) 35 CADR above target	435	674 sq ft	Check CARB	N/A	N/A	Check price
Blueair 7721371000 (7710i) 35 CADR above target	435	674 sq ft	Check CARB	N/A	N/A	Check price
Airhub A800 46 CADR above target	446	691 sq ft	Check CARB	N/A	N/A	Check price
Winix XLC 46 CADR above target	446	691 sq ft	Check CARB	N/A	N/A	Check price
Blueair 590i (Model Discontinued - Filter Available) 50 CADR above target	450	698 sq ft	Check CARB	N/A	N/A	Check price
Lux LACH-2 Hera 50 CADR above target	450	698 sq ft	Check CARB	N/A	N/A	Check price
Lux LACS-1 Aura 50 CADR above target	450	698 sq ft	Check CARB	N/A	N/A	Check price
Blueair 4312111000 (Blue Signature) 55 CADR above target	455	705 sq ft	Check CARB	N/A	N/A	Check price
Blueair 4312112000 55 CADR above target	455	705 sq ft	Check CARB	N/A	N/A	Check price
Blueair 4332111000 55 CADR above target	455	705 sq ft	Check CARB	N/A	N/A	Check price
Blueair 4332112000 55 CADR above target	455	705 sq ft	Check CARB	N/A	N/A	Check price
Blueair 4342211000 55 CADR above target	455	705 sq ft	Check CARB	N/A	N/A	Check price
Blueair 4342212000 55 CADR above target	455	705 sq ft	Check CARB	N/A	N/A	Check price
CUCKOO CAC-AH2810FNW 55 CADR above target	455	705 sq ft	Check CARB	N/A	N/A	Check price
Winix Tower XQ 61 CADR above target	461	714 sq ft	Check CARB	N/A	N/A	Check price
Winix XQ Pro 61 CADR above target	461	714 sq ft	Check CARB	N/A	N/A	Check price
CUCKOO CAC-F3010FW 116 CADR above target	516	800 sq ft	Check CARB	N/A	N/A	Check price