Best air purifiers for 600 sq ft and dust

Target smoke CADR 240 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
600 x 8 x 3 / 60 = 240
AHAM 2/3 room-size cross-check: CADR >= 400

Model	Smoke CADR	AHAM room	CARB	Cost/CADR	Annual filter
LEVOIT LAP-C601S-WUSR 154 CADR above target	394	611 sq ft	Check CARB	$0.76	$59.99	Check price
LEVOIT LAP-C601S-AUS 151 CADR above target	391	606 sq ft	Check CARB	$0.77	$59.99	Check price
LEVOIT LAP-C601S-WCA 151 CADR above target	391	606 sq ft	Check CARB	$0.77	$59.99	Check price
LEVOIT LAP-C601S-WUS 151 CADR above target	391	606 sq ft	Check CARB	$0.77	$59.99	Check price
Blueair Blue Signature 215 CADR above target	455	705 sq ft	Matched	$0.99	N/A	Check price
Medify Air MA-112 Pro 360 CADR above target	600	930 sq ft	Check CARB	$0.99	N/A	Check price
Medify Air MA-112 354 CADR above target	594	921 sq ft	Check CARB	$1.00	N/A	Check price
LEVOIT LAP-EL551S-AUS 114 CADR above target	354	549 sq ft	Check CARB	$1.41	N/A	Check price
LEVOIT LAP-EL551S-AUSR 114 CADR above target	354	549 sq ft	Check CARB	$1.41	N/A	Check price
LEVOIT LAP-EL551S-WUSB 114 CADR above target	354	549 sq ft	Check CARB	$1.41	N/A	Check price
WOZOYO Pure Air PA12 123 CADR above target	363	563 sq ft	Matched	N/A	N/A	Check price
WOZOYO Pure Air PA6 123 CADR above target	363	563 sq ft	Matched	N/A	N/A	Check price
Medify Air MA-40 V3.0 1 CADR above target	241	374 sq ft	Check CARB	N/A	N/A	Check price
Winix AM90 1 CADR above target	241	373 sq ft	Check CARB	N/A	N/A	Check price
Insigna NS-APMWH2-C 2 CADR above target	242	375 sq ft	Check CARB	N/A	N/A	Check price
Blueair 3431101000 (Blue Pure 311 Auto) 4 CADR above target	244	378 sq ft	Check CARB	N/A	N/A	Check price
CUCKOO CAC-R1510FW 6 CADR above target	246	380 sq ft	Check CARB	N/A	N/A	Check price
NOMA 143-1310 8 CADR above target	248	384 sq ft	Check CARB	N/A	N/A	Check price
Winix C610 8 CADR above target	248	384 sq ft	Check CARB	N/A	N/A	Check price
Winix C710 8 CADR above target	248	384 sq ft	Check CARB	N/A	N/A	Check price
Blueair 3431101000 (Blue 3410) 10 CADR above target	250	388 sq ft	Check CARB	N/A	N/A	Check price
LEVOIT LAP-V201S-**** 10 CADR above target	250	388 sq ft	Check CARB	N/A	N/A	Check price
LEVOIT LAP-V201S-AUSR 10 CADR above target	250	388 sq ft	Check CARB	N/A	N/A	Check price
LEVOIT LAP-V201S-KUS 10 CADR above target	250	388 sq ft	Check CARB	N/A	N/A	Check price
LEVOIT LAP-V201S-WCA 10 CADR above target	250	388 sq ft	Check CARB	N/A	N/A	Check price