Air purifiers for 500 sq ft by DOE effective room size

Ranked by DOE effective room size. DOE data as of 2026-11-03 · DOE source

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From the 10 listed models that fit. No one pays for a pick.

Of 30 air purifiers with a DOE effective room size of 500 sq ft or more, the highest smoke CADR is Dyson BP10-A at 591 cfm (DOE data as of 2026-11-03). The median is 374 cfm.
10 of the 30 air purifiers with a DOE effective room size of 500 sq ft or more are matched to an Amazon listing as of 2026-11-03.
4 of the 30 air purifiers with a DOE effective room size of 500 sq ft or more are filed under two or more brand names: the same unit sold as different brands.

10 air purifiers with a DOE effective room size of 500 sq ft or more, matched to an Amazon listing, closest fit first. DOE data as of 2026-11-03. Download every model (CSV, JSON)
#	Model	Labels	Smoke CADR, cfm	Room size	PM2.5 CADR	CADR/W	Brands	Amazon
1	WinixC909	CADR/W 4	337cfm, 522 sq ft	522 sq ft	339	4	1	Check price on Amazon
2	HoneywellHPA5300B	CADR/W 3.1	338cfm, 524 sq ft	524 sq ft	339	3.1	1	Check price on Amazon
3	BOSCHAir 6000	CADR/W 6.9	339cfm, 525 sq ft	525 sq ft	343	6.9	1	Check price on Amazon
4	SharpKCP110UW	CADR/W 3.9	347cfm, 538 sq ft	538 sq ft	349	3.9	1	Check price on Amazon
5	WOZOYOPure Air PA6	CADR/W 5.8	363cfm, 563 sq ft	563 sq ft	367	5.8	1	Check price on Amazon
6	JAFANDAJF888	CADR/W 4.8	423cfm, 656 sq ft	656 sq ft	421	4.8	1	Check price on Amazon
7	Blueair3613111100	CADR/W 9.1	435cfm, 674 sq ft	674 sq ft	443	9.1	1	Check price on Amazon
8	AirhubA800	CADR/W 4.7	446cfm, 691 sq ft	691 sq ft	439	4.7	1	Check price on Amazon
9	JAFANDAJF999	CADR/W 4.2	548cfm, 849 sq ft	849 sq ft	516	4.2	1	Check price on Amazon
10	AirhubA990	CADR/W 6.3	556cfm, 862 sq ft	862 sq ft	537	6.3	1	Check price on Amazon

20 more certified models fit, with no Amazon listing matched

20 air purifiers with a DOE effective room size of 500 sq ft or more, with no matched listing, as of 2026-11-03.
#	Model	Labels	Smoke CADR, cfm	Room size	PM2.5 CADR	CADR/W	Brands
1	FellowesAeraMax SE	CADR/W 4.9	323cfm, 500 sq ft	500 sq ft	326	4.9	1
2	Blueair3432111100	CADR/W 9.1	339cfm, 525 sq ft	525 sq ft	354	9.1	1
3	WOOZOOAPF-45	CADR/W 7.2	342cfm, 530 sq ft	530 sq ft	342	7.2	1
4	HoneywellHPA3300b	CADR/W 3.1	342cfm, 530 sq ft	530 sq ft	340	3.1	1
5	Smart AirCMKQ104	CADR/W 5.8	353cfm, 547 sq ft	547 sq ft	354	5.8	1
6	Blueair3631101000	CADR/W 8.8	356cfm, 552 sq ft	552 sq ft	351	8.8	1
7	OransiMD02	CADR/W 3.9	363cfm, 563 sq ft	563 sq ft	369	3.9	1
8	AirgleAG900	CADR/W 3	363cfm, 563 sq ft	563 sq ft	366	3	1
9	MideaKJ600G-RX600A	CADR/W 6.4 Sold under 3 brands	366cfm, 567 sq ft	567 sq ft	373	6.4	3
10	KNKAAPH4000 Pro	CADR/W 5.6 Sold under 2 brands	369cfm, 572 sq ft	572 sq ft	367	5.6	2
11	AirFanta5Pro(Without Carbon)	CADR/W 9.6	379cfm, 587 sq ft	587 sq ft	393	9.6	1
12	CuckooCAC-D2020FW	CADR/W 7.1	382cfm, 593 sq ft	593 sq ft	384	7.1	1
13	HealthWayMAX500	CADR/W 5.4 Sold under 2 brands	426cfm, 660 sq ft	660 sq ft	438	5.4	2
14	DysonMP01-C	CADR/W 8.2	430cfm, 667 sq ft	667 sq ft	430	8.2	1
15	CuckcooCAC-AH2810FNW	CADR/W 3.9	455cfm, 705 sq ft	705 sq ft	461	3.9	1
16	WinixXQ Pro	CADR/W 5.7	461cfm, 714 sq ft	714 sq ft	471	5.7	1
17	FellowesAeraMax SV	CADR/W 6.1	519cfm, 803 sq ft	803 sq ft	514	6.1	1
18	CuckooCAC-F3010FW	CADR/W 7.8	552cfm, 856 sq ft	856 sq ft	543	7.8	1
19	HealthWayH1000	CADR/W 5.2 Sold under 2 brands	554cfm, 859 sq ft	859 sq ft	564	5.2	2
20	DysonBP10-A	CADR/W 6.2	591cfm, 916 sq ft	916 sq ft	595	6.2	1

What size air purifier do I need for 500 sq ft?: One with a DOE effective room size of at least 500 sq ft, which means a smoke CADR of about 323 cfm or more.