Air purifiers for 300 sq ft by DOE effective room size

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

Your room

296certified air purifiers
98rated 300 sq ft or more
44with a matched listing

Filter and sort all 44

Start with these three

As an Amazon Associate I earn from qualifying purchases.

From the 44 listed models that fit. No one pays for a pick.

Smallest that fits, highest CADR/W

Priestley P360
195 cfm

Room size 302 sq ft. CADR/W 5.1.
Check price on Amazon
Highest CADR/W that fits

Blueair 4412311000
321 cfm

Room size 498 sq ft. CADR/W 10.2.
Check price on Amazon
Most smoke CADR, highest CADR/W

Airhub A990
556 cfm

Room size 862 sq ft. CADR/W 6.3.
Check price on Amazon

Key findings

Of 98 air purifiers with a DOE effective room size of 300 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 286 cfm.
44 of the 98 air purifiers with a DOE effective room size of 300 sq ft or more are matched to an Amazon listing as of 2026-11-03.
10 of the 98 air purifiers with a DOE effective room size of 300 sq ft or more are filed under two or more brand names: the same unit sold as different brands.

All 44 listed models that fit

44 air purifiers with a DOE effective room size of 300 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	PriestleyP360	CADR/W 5.1	195cfm, 302 sq ft	302 sq ft	198	5.1	1	Check price on Amazon
2	HoneywellHFD320	CADR/W 5	201cfm, 311 sq ft	311 sq ft	196	5	1	Check price on Amazon
3	OransiAMD-200HB	CADR/W 3.7	208cfm, 322 sq ft	322 sq ft	214	3.7	1	Check price on Amazon
4	DREAMECVF61A	CADR/W 3.4	216cfm, 335 sq ft	335 sq ft	225	3.4	1	Check price on Amazon
5	AeittoKJ450F-A1	CADR/W 4.5 Sold under 6 brands	219cfm, 339 sq ft	339 sq ft	226	4.5	6	Check price on Amazon
6	PurebornePB6866	CADR/W 6	222cfm, 344 sq ft	344 sq ft	228	6	1	Check price on Amazon
7	DREAMECVF20B	CADR/W 8.8	224cfm, 347 sq ft	347 sq ft	223	8.8	1	Check price on Amazon
8	KNKAAPH4000	CADR/W 4.3 Sold under 2 brands	226cfm, 350 sq ft	350 sq ft	226	4.3	2	Check price on Amazon
9	HoneywellHPA4300B	CADR/W 7.4	229cfm, 354 sq ft	354 sq ft	233	7.4	1	Check price on Amazon
10	Blueair6331411000	CADR/W 4.9	232cfm, 360 sq ft	360 sq ft	227	4.9	1	Check price on Amazon
11	HoneywellHPA5200B	CADR/W 3	233cfm, 361 sq ft	361 sq ft	238	3	1	Check price on Amazon
12	WinixC545	CADR/W 4.3	234cfm, 363 sq ft	363 sq ft	230	4.3	1	Check price on Amazon
13	WinixC535	CADR/W 4.1	239cfm, 370 sq ft	370 sq ft	241	4.1	1	Check price on Amazon
14	CowayAP-1512N	CADR/W 4.5	242cfm, 375 sq ft	375 sq ft	243	4.5	1	Check price on Amazon
15	LUFTRUMC3500	CADR/W 5	243cfm, 377 sq ft	377 sq ft	246	5	1	Check price on Amazon
16	WinixC610	CADR/W 6.2	248cfm, 384 sq ft	384 sq ft	250	6.2	1	Check price on Amazon
17	Winix5510	CADR/W 4.6	253cfm, 392 sq ft	392 sq ft	252	4.6	1	Check price on Amazon
18	CowayAP-1526D	CADR/W 7.6	255cfm, 395 sq ft	395 sq ft	257	7.6	1	Check price on Amazon
19	SharpKCP70UW	CADR/W 6.7	255cfm, 396 sq ft	396 sq ft	257	6.7	1	Check price on Amazon
20	HoneywellHPA6000B	CADR/W 7.3	257cfm, 398 sq ft	398 sq ft	259	7.3	1	Check price on Amazon
21	JAFANDAJF500	CADR/W 4.5	259cfm, 401 sq ft	401 sq ft	266	4.5	1	Check price on Amazon
22	MEDIFY AIRMA-50-V3.0	CADR/W 6.3	264cfm, 409 sq ft	409 sq ft	272	6.3	1	Check price on Amazon
23	SIESEANAP-480	CADR/W 6.4	270cfm, 419 sq ft	419 sq ft	270	6.4	1	Check price on Amazon
24	WinixT810	CADR/W 6.1	270cfm, 418 sq ft	418 sq ft	271	6.1	1	Check price on Amazon
25	Blueair3332111100	CADR/W 8.4	283cfm, 439 sq ft	439 sq ft	298	8.4	1	Check price on Amazon
26	DREAMECVF14A	CADR/W 5.4	286cfm, 443 sq ft	443 sq ft	286	5.4	1	Check price on Amazon
27	WindmillWAP1M1	CADR/W 4.1	286cfm, 443 sq ft	443 sq ft	285	4.1	1	Check price on Amazon
28	DreoDR-HAP003S	CADR/W 6.2	294cfm, 456 sq ft	456 sq ft	300	6.2	1	Check price on Amazon
29	LEVOITLAP-C511S-WUS	CADR/W 9	301cfm, 467 sq ft	467 sq ft	299	9	1	Check price on Amazon
30	LGAS601HBB0	CADR/W 6.6	305cfm, 473 sq ft	473 sq ft	303	6.6	1	Check price on Amazon
31	CuckooCAC-K1910FW	CADR/W 5.6	306cfm, 475 sq ft	475 sq ft	310	5.6	1	Check price on Amazon
32	LGAS601HHB0	CADR/W 5.8	309cfm, 479 sq ft	479 sq ft	310	5.8	1	Check price on Amazon
33	Blueair4412311000	CADR/W 10.2	321cfm, 498 sq ft	498 sq ft	315	10.2	1	Check price on Amazon
34	WinixD480	CADR/W 3.8	321cfm, 498 sq ft	498 sq ft	324	3.8	1	Check price on Amazon
35	WinixC909	CADR/W 4	337cfm, 522 sq ft	522 sq ft	339	4	1	Check price on Amazon
36	HoneywellHPA5300B	CADR/W 3.1	338cfm, 524 sq ft	524 sq ft	339	3.1	1	Check price on Amazon
37	BOSCHAir 6000	CADR/W 6.9	339cfm, 525 sq ft	525 sq ft	343	6.9	1	Check price on Amazon
38	SharpKCP110UW	CADR/W 3.9	347cfm, 538 sq ft	538 sq ft	349	3.9	1	Check price on Amazon
39	WOZOYOPure Air PA6	CADR/W 5.8	363cfm, 563 sq ft	563 sq ft	367	5.8	1	Check price on Amazon
40	JAFANDAJF888	CADR/W 4.8	423cfm, 656 sq ft	656 sq ft	421	4.8	1	Check price on Amazon
41	Blueair3613111100	CADR/W 9.1	435cfm, 674 sq ft	674 sq ft	443	9.1	1	Check price on Amazon
42	AirhubA800	CADR/W 4.7	446cfm, 691 sq ft	691 sq ft	439	4.7	1	Check price on Amazon
43	JAFANDAJF999	CADR/W 4.2	548cfm, 849 sq ft	849 sq ft	516	4.2	1	Check price on Amazon
44	AirhubA990	CADR/W 6.3	556cfm, 862 sq ft	862 sq ft	537	6.3	1	Check price on Amazon

54 more certified models fit, with no Amazon listing matched

54 air purifiers with a DOE effective room size of 300 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	SmartmiKQJHQ02ZM	CADR/W 4.6	195cfm, 302 sq ft	302 sq ft	196	4.6	1
2	WOOZOOAPF-25	CADR/W 6.5	197cfm, 305 sq ft	305 sq ft	199	6.5	1
3	WOZOYOPure Air PA5	CADR/W 4.2	199cfm, 308 sq ft	308 sq ft	207	4.2	1
4	WOOZOOAPF-28	CADR/W 6.7	209cfm, 324 sq ft	324 sq ft	210	6.7	1
5	DREAMECVF66A	CADR/W 7.9	211cfm, 327 sq ft	327 sq ft	229	7.9	1
6	DysonJH01-C	CADR/W 7.4	211cfm, 327 sq ft	327 sq ft	216	7.4	1
7	SharpKJ400G-L1A-SH Lite	CADR/W 6.4	214cfm, 332 sq ft	332 sq ft	224	6.4	1
8	ComefreshAP-H2226S	CADR/W 6.4	218cfm, 338 sq ft	338 sq ft	222	6.4	1
9	BARENHAP611WF	CADR/W 5.3 Sold under 2 brands	221cfm, 343 sq ft	343 sq ft	225	5.3	2
10	PurebornePB6866-WF	CADR/W 6	222cfm, 344 sq ft	344 sq ft	228	6	1
11	SharkHP362 MP	CADR/W 4.6	231cfm, 358 sq ft	358 sq ft	233	4.6	1
12	SharkHP365CO	CADR/W 4.5	231cfm, 358 sq ft	358 sq ft	236	4.5	1
13	WinixD360	CADR/W 3.7	233cfm, 361 sq ft	361 sq ft	233	3.7	1
14	OransiMJR01	CADR/W 4.7	234cfm, 363 sq ft	363 sq ft	236	4.7	1
15	WinixAM90	CADR/W 4.6	241cfm, 373 sq ft	373 sq ft	239	4.6	1
16	LUFTRUMC3500	CADR/W 5	243cfm, 377 sq ft	377 sq ft	246	5	1
17	Blueair3431101000	CADR/W 7.1	244cfm, 378 sq ft	378 sq ft	246	7.1	1
18	InsigniaNS-APMWH2-C	CADR/W 5.8	245cfm, 380 sq ft	380 sq ft	242	5.8	1
19	WinixAT40	CADR/W 5.6	265cfm, 410 sq ft	410 sq ft	261	5.6	1
20	WinixWX100	CADR/W 3.6	270cfm, 418 sq ft	418 sq ft	273	3.6	1
21	CuckooCAC-R1510FW	CADR/W 5.6	271cfm, 420 sq ft	420 sq ft	272	5.6	1
22	WinixWX101	CADR/W 5.5	272cfm, 421 sq ft	421 sq ft	270	5.5	1
23	Nuwave47901	CADR/W 6.1	279cfm, 432 sq ft	432 sq ft	281	6.1	1
24	DREAMECVA12A	CADR/W 6.7	289cfm, 448 sq ft	448 sq ft	290	6.7	1
25	SharpFP-A80U	CADR/W 3.1	293cfm, 454 sq ft	454 sq ft	293	3.1	1
26	BARENC500BR	CADR/W 5.4 Sold under 2 brands	294cfm, 456 sq ft	456 sq ft	295	5.4	2
27	COWSARAP4416-UL	CADR/W 7 Sold under 2 brands	297cfm, 460 sq ft	460 sq ft	303	7	2
28	DysonJC01-A	CADR/W 13.5	298cfm, 462 sq ft	462 sq ft	330	13.5	1
29	VornadoAPM-1003-23	CADR/W 4.5	304cfm, 471 sq ft	471 sq ft	306	4.5	1
30	GREENLITEKJ500G-L1	CADR/W 6 Sold under 11 brands	305cfm, 473 sq ft	473 sq ft	309	6	11
31	Royal PrestigeAP1303	CADR/W 7.2	312cfm, 484 sq ft	484 sq ft	315	7.2	1
32	SharpFXJ80UW	CADR/W 4.9	315cfm, 488 sq ft	488 sq ft	315	4.9	1
33	Atmosphere SKY120539	CADR/W 6.1	316cfm, 489 sq ft	489 sq ft	310	6.1	1
34	InsigniaNS-APLWH2-C	CADR/W 4.6	321cfm, 498 sq ft	498 sq ft	315	4.6	1
35	FellowesAeraMax SE	CADR/W 4.9	323cfm, 500 sq ft	500 sq ft	326	4.9	1
36	Blueair3432111100	CADR/W 9.1	339cfm, 525 sq ft	525 sq ft	354	9.1	1
37	WOOZOOAPF-45	CADR/W 7.2	342cfm, 530 sq ft	530 sq ft	342	7.2	1
38	HoneywellHPA3300b	CADR/W 3.1	342cfm, 530 sq ft	530 sq ft	340	3.1	1
39	Smart AirCMKQ104	CADR/W 5.8	353cfm, 547 sq ft	547 sq ft	354	5.8	1
40	Blueair3631101000	CADR/W 8.8	356cfm, 552 sq ft	552 sq ft	351	8.8	1
41	OransiMD02	CADR/W 3.9	363cfm, 563 sq ft	563 sq ft	369	3.9	1
42	AirgleAG900	CADR/W 3	363cfm, 563 sq ft	563 sq ft	366	3	1
43	MideaKJ600G-RX600A	CADR/W 6.4 Sold under 3 brands	366cfm, 567 sq ft	567 sq ft	373	6.4	3
44	KNKAAPH4000 Pro	CADR/W 5.6 Sold under 2 brands	369cfm, 572 sq ft	572 sq ft	367	5.6	2
45	AirFanta5Pro(Without Carbon)	CADR/W 9.6	379cfm, 587 sq ft	587 sq ft	393	9.6	1
46	CuckooCAC-D2020FW	CADR/W 7.1	382cfm, 593 sq ft	593 sq ft	384	7.1	1
47	HealthWayMAX500	CADR/W 5.4 Sold under 2 brands	426cfm, 660 sq ft	660 sq ft	438	5.4	2
48	DysonMP01-C	CADR/W 8.2	430cfm, 667 sq ft	667 sq ft	430	8.2	1
49	CuckcooCAC-AH2810FNW	CADR/W 3.9	455cfm, 705 sq ft	705 sq ft	461	3.9	1
50	WinixXQ Pro	CADR/W 5.7	461cfm, 714 sq ft	714 sq ft	471	5.7	1
51	FellowesAeraMax SV	CADR/W 6.1	519cfm, 803 sq ft	803 sq ft	514	6.1	1
52	CuckooCAC-F3010FW	CADR/W 7.8	552cfm, 856 sq ft	856 sq ft	543	7.8	1
53	HealthWayH1000	CADR/W 5.2 Sold under 2 brands	554cfm, 859 sq ft	859 sq ft	564	5.2	2
54	DysonBP10-A	CADR/W 6.2	591cfm, 916 sq ft	916 sq ft	595	6.2	1

Questions

What size air purifier do I need for 300 sq ft?: One with a DOE effective room size of at least 300 sq ft, which means a smoke CADR of about 194 cfm or more.