Compare your matches

Three of 31 matches compared, every match below. Air purifiers priced $400 or more come first, then cheaper ones. Tap an answer to change it.

Room sizeNot sure, show all sizes, change this answer BudgetNo limit, change this answer Filter nameYes, True HEPA, change this answer QuietnessNo preference, change this answer Phone appNo preference, change this answer Odor filterNo preference, change this answer

Your answersYes, True HEPAChange

As an Amazon Associate I earn from qualifying purchases.

Marked figures lead their row among these 3 matches, as each maker states them.

Closest match

Winix 9800

$344.99

at Winix's store · checked Oct 27

Amazon's price may differ.

See more(paid link)

Coway Airmega 450

$499.00

at Coway's store · checked Oct 19

Amazon's price may differ.

See more(paid link)

Levoit EverestAir-P

$499.99

at Levoit's store · checked Oct 19

Amazon's price may differ.

See more(paid link)

Why this match

Winix 9800, why this match:

Matches: HEPA filter name: True HEPA
Budget: Under $400 on the maker’s store

Closest match: matches the most of what you asked for

Coway Airmega 450, why this match:

Does not match: HEPA filter name: HEPA
Budget: $400 or more on the maker’s store

Levoit EverestAir-P, why this match:

Not stated: HEPA filter name: not stated by Levoit
Budget: $400 or more on the maker’s store

Room size, maker's rating

Winix 9800, Room size, maker's rating: 522 sq ft

Coway Airmega 450, Room size, maker's rating: 684 sq ftLargest room rating, among these 3 matches

Levoit EverestAir-P, Room size, maker's rating: 549 sq ft

HEPA filter name

Winix 9800, HEPA filter name: True HEPA

Coway Airmega 450, HEPA filter name: HEPA

Levoit EverestAir-P, HEPA filter name: Not stated by maker

Noise on the lowest setting

Winix 9800, Noise on the lowest setting: 26.2 dB

Coway Airmega 450, Noise on the lowest setting: 23.6 dBLowest stated noise, among these 3 matches

Levoit EverestAir-P, Noise on the lowest setting: 24 dB

Phone app control

Winix 9800, Phone app control: Yes, maker states it

Coway Airmega 450, Phone app control: Not stated by maker

Levoit EverestAir-P, Phone app control: Yes, maker states it

Carbon filter

Winix 9800, Carbon filter: Yes, maker states it

Coway Airmega 450, Carbon filter: Yes, maker states it

Levoit EverestAir-P, Carbon filter: Not stated by maker

Clean air delivery rate

Winix 9800, Clean air delivery rate: Not stated by maker

Coway Airmega 450, Clean air delivery rate: 439 CFMHighest stated CADR, among these 3 matches

Levoit EverestAir-P, Clean air delivery rate: 354 CFM

Source

Winix 9800, source: winixamerica.comUpdated October 28, 2026

Coway Airmega 450, source: cowaymega.comUpdated October 28, 2026

Levoit EverestAir-P, source: levoit.comUpdated October 28, 2026

✓ matches · ≈ close · – doesn't match · ? not stated by the maker
Marked figures lead their row among these 3 matches, as each maker states them.

Closest match · matches the most of what you asked for

Winix 9800

522 sq ftRoom size, maker's rating

26.2 dBNoise on the lowest setting

Filter nameMatches: True HEPA
BudgetUnder $400on the maker’s store

$344.99

at Winix's store · checked Oct 27

Amazon's price may differ.

See more(paid link)

All specs

Room size, maker's rating: 522 sq ft
HEPA filter name: True HEPA
Noise on the lowest setting: 26.2 dB
Phone app control: Yes, maker states it
Carbon filter: Yes, maker states it
Clean air delivery rate: Not stated by maker
SourceUpdated October 28, 2026: winixamerica.com

Coway Airmega 450

684 sq ftRoom size, maker's ratingLargest room rating, among these 3 matches

23.6 dBNoise on the lowest settingLowest stated noise, among these 3 matches

439 CFMClean air delivery rateHighest stated CADR, among these 3 matches

Filter nameDoes not match: HEPA
Budget$400 or moreon the maker’s store

$499.00

at Coway's store · checked Oct 19

Amazon's price may differ.

See more(paid link)

All specs

Room size, maker's rating: 684 sq ft
HEPA filter name: HEPA
Noise on the lowest setting: 23.6 dB
Phone app control: Not stated by maker
Carbon filter: Yes, maker states it
Clean air delivery rate: 439 CFM
SourceUpdated October 28, 2026: cowaymega.com

Levoit EverestAir-P

549 sq ftRoom size, maker's rating

24 dBNoise on the lowest setting

354 CFMClean air delivery rate

Filter nameNot stated: Not stated by Levoit
Budget$400 or moreon the maker’s store

$499.99

at Levoit's store · checked Oct 19

Amazon's price may differ.

See more(paid link)

All specs

Room size, maker's rating: 549 sq ft
HEPA filter name: Not stated by maker
Noise on the lowest setting: 24 dB
Phone app control: Yes, maker states it
Carbon filter: Not stated by maker
Clean air delivery rate: 354 CFM
SourceUpdated October 28, 2026: levoit.com

All 31 matches

Every match, ranked by what you asked for, then air purifiers priced $400 or more, then what each maker states.

✓ matches · ≈ close · – doesn't match · ? not stated by the maker

Winix 9800
522 sq ft · True HEPA · 26.2 dB Price band: Under $400
Matches: Filter name
$344.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Coway Airmega 450
684 sq ft · HEPA · 23.6 dB Price band: $400 or more
Does not match: Filter name
$499.00
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit EverestAir-P
549 sq ft · 24 dB Price band: $400 or more
Not stated: Filter name
$499.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Winix D480
480 sq ft · True HEPA · 25 dB Price band: Under $400
Matches: Filter name
$349.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Winix A231
246 sq ft · True HEPA · 25 dB Price band: Under $300
Matches: Filter name
$129.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Winix C610
384 sq ft · True HEPA · 22 dB Price band: Under $300
Matches: Filter name
$129.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Winix C535
370 sq ft · True HEPA · 27 dB Price band: Under $300
Matches: Filter name
$154.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Winix T810
418 sq ft · True HEPA · 23.8 dB Price band: Under $300
Matches: Filter name
$259.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Winix 5520
392 sq ft · True HEPA · 23.5 dB Price band: Under $300
Matches: Filter name
$259.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Blueair DustMagnet 5440i
335 sq ft · HEPASilent · 31 dB Price band: Under $400
Does not match: Filter name
$319.99
at Blueair's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Coway Airmega 350
550 sq ft · HEPA · 21.5 dB Price band: Under $400
Does not match: Filter name
$339.00
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Blueair Blue Pure 511
189 sq ft · HEPASilent · 24 dB Price band: Under $300
Does not match: Filter name
$99.99
at Blueair's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Coway Airmega 100
169 sq ft · HEPA · 20 dB Price band: Under $300
Does not match: Filter name
$129.99
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit Eleva 300X
250 sq ft · HEPA · 20 dB Price band: Under $300
Does not match: Filter name
$129.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Coway Airmega Mighty2 Mini
217 sq ft · HEPA · 19.2 dB Price band: Under $300
Does not match: Filter name
$169.99
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Coway Airmega 150
214 sq ft · HEPA · 19.98 dB Price band: Under $300
Does not match: Filter name
$189.99
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit Vital 200S-P
388 sq ft · HEPA-grade · 23 dB Price band: Under $300
Does not match: Filter name
$189.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Coway Airmega 200M
361 sq ft · HEPA · 24.4 dB Price band: Under $300
Does not match: Filter name
$229.99
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Blueair Blue Pure 311i Max
439 sq ft · HEPASilent · 23 dB Price band: Under $300
Does not match: Filter name
$229.99
at Blueair's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Coway Airmega Mighty AP-1512HH
361 sq ft · HEPA · 24 dB Price band: Under $300
Does not match: Filter name
$239.99
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Blueair Blue Pure 311i+ Max
525 sq ft · HEPASilent · 23 dB Price band: Under $300
Does not match: Filter name
$254.99
at Blueair's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit Eleva 500X
467 sq ft · HEPA · 22 dB Price band: Under $300
Does not match: Filter name
$259.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Coway Airmega Mighty2 AP-1512N
375 sq ft · HEPA · 19 dB Price band: Under $300
Does not match: Filter name
$269.99
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Coway Airmega MightyS AP-1512HHS
326 sq ft · HEPA · 24.4 dB Price band: Under $300
Does not match: Filter name
$299.99
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Medify MA-50-V3.0
550 sq ft · HEPA · 21.2 dB Price band: Under $300
Does not match: Filter name
$299.99
at Medify's store · checked Oct 22
Amazon's price may differ.
See more(paid link)
Levoit Core 600S-P
606 sq ft · HEPA-grade · 26 dB Price band: Under $300
Does not match: Filter name
$299.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit Core 300-P
222 sq ft · 24 dB Price band: Under $300
Not stated: Filter name
$89.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit Core P350-P
217 sq ft · 24 dB Price band: Under $300
Not stated: Filter name
$129.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit Core 300S-P
219 sq ft · 22 dB Price band: Under $300
Not stated: Filter name
$149.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit Core 400S-P
358 sq ft · 22 dB Price band: Under $300
Not stated: Filter name
$189.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Levoit Vital Pet Pro
229 sq ft · 21 dB Price band: Under $300
Not stated: Filter name
$199.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)

How we match

We keep only air purifiers that meet your requirements (Room size and Budget), then rank them by the extras you asked for. An air purifier only gets credit for a feature when its maker states it; "not stated" never counts as yes. Among equals, air purifiers priced in the budget band you chose come first (with no limit, the air purifiers above our top budget), then air purifiers whose makers state more of what you asked about, then the lower price on the maker's own store, then a fixed catalogue order. We compare one air purifier per brand: each brand's highest-ranked match.

By whichproduct.app · AI-assisted, approved by the site owner · Updated October 28, 2026

Compare your matches

Winix 9800

Coway Airmega 450

Levoit EverestAir-P

Winix 9800

Coway Airmega 450

Levoit EverestAir-P

All 31 matches

How we match

Were these results useful?