Best air purifiers for 500 sq ft and dust

Target smoke CADR 200 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
500 x 8 x 3 / 60 = 200
AHAM 2/3 room-size cross-check: CADR >= 334

Model	Smoke CADR	AHAM room	CARB	Cost/CADR	Annual filter
LEVOIT LAP-C601S-WUSR 194 CADR above target	394	611 sq ft	Check CARB	$0.76	$59.99	Check price
LEVOIT LAP-C601S-AUS 191 CADR above target	391	606 sq ft	Check CARB	$0.77	$59.99	Check price
LEVOIT LAP-C601S-WCA 191 CADR above target	391	606 sq ft	Check CARB	$0.77	$59.99	Check price
LEVOIT LAP-C601S-WUS 191 CADR above target	391	606 sq ft	Check CARB	$0.77	$59.99	Check price
Blueair Blue Signature 255 CADR above target	455	705 sq ft	Matched	$0.99	N/A	Check price
Medify Air MA-112 Pro 400 CADR above target	600	930 sq ft	Check CARB	$0.99	N/A	Check price
Medify Air MA-112 394 CADR above target	594	921 sq ft	Check CARB	$1.00	N/A	Check price
LEVOIT LAP-EL551S-AUS 154 CADR above target	354	549 sq ft	Check CARB	$1.41	N/A	Check price
LEVOIT LAP-EL551S-AUSR 154 CADR above target	354	549 sq ft	Check CARB	$1.41	N/A	Check price
LEVOIT LAP-EL551S-WUSB 154 CADR above target	354	549 sq ft	Check CARB	$1.41	N/A	Check price
WOZOYO Pure Air PA12 163 CADR above target	363	563 sq ft	Matched	N/A	N/A	Check price
WOZOYO Pure Air PA6 163 CADR above target	363	563 sq ft	Matched	N/A	N/A	Check price
Honeywell HPA200 0 CADR above target	200	310 sq ft	Check CARB	N/A	N/A	Check price
Honeywell HPA250B 0 CADR above target	200	310 sq ft	Check CARB	N/A	N/A	Check price
WOOZOO APF-28 0 CADR above target	200	325 sq ft	Check CARB	N/A	N/A	Check price
DREAME CVF24A 3 CADR above target	203	315 sq ft	Check CARB	N/A	N/A	Check price
Honeywell (Taiwan) HPA720WTWV1 7 CADR above target	207	321 sq ft	Check CARB	N/A	N/A	Check price
Midea KJ350G-S1 8 CADR above target	208	322 sq ft	Check CARB	N/A	N/A	Check price
Oransi AMD-200HB 8 CADR above target	208	322 sq ft	Check CARB	N/A	N/A	Check price
PURE CODE APU-S1WUS 8 CADR above target	208	322 sq ft	Check CARB	N/A	N/A	Check price
Medify Air MA-WM45 15 CADR above target	215	333 sq ft	Check CARB	N/A	N/A	Check price
Blueair 5431111000 (DustMagnet 5410i) 16 CADR above target	216	335 sq ft	Check CARB	N/A	N/A	Check price
Blueair 5431112000 (DustMagnet 5440i) 16 CADR above target	216	335 sq ft	Check CARB	N/A	N/A	Check price
DREAME CVF61A 16 CADR above target	216	335 sq ft	Check CARB	N/A	N/A	Check price
Sharp KC-860U 20 CADR above target	220	341 sq ft	Check CARB	N/A	N/A	Check price