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 nameNo preference, change this answer QuietnessNo preference, change this answer Phone appNo preference, change this answer Odor filterYes, a carbon filter, change this answer

Your answersYes, a carbon filterChange

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

Closest match

Coway Airmega 450

$499.00

at Coway's store · checked Oct 19

Amazon's price may differ.

See more(paid link)

Blueair DustMagnet 5440i

$319.99

at Blueair's store · checked Oct 19

Amazon's price may differ.

See more(paid link)

Winix 9800

$344.99

at Winix's store · checked Oct 27

Amazon's price may differ.

See more(paid link)

Why this match

Coway Airmega 450, why this match:

Matches: Carbon filter: Yes
Budget: $400 or more on the maker’s store

Closest match: matches the most of what you asked for

Blueair DustMagnet 5440i, why this match:

Matches: Carbon filter: Yes
Budget: Under $400 on the maker’s store

Winix 9800, why this match:

Matches: Carbon filter: Yes
Budget: Under $400 on the maker’s store

Room size, maker's rating

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

Blueair DustMagnet 5440i, Room size, maker's rating: 335 sq ft

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

HEPA filter name

Coway Airmega 450, HEPA filter name: HEPA

Blueair DustMagnet 5440i, HEPA filter name: HEPASilent

Winix 9800, HEPA filter name: True HEPA

Noise on the lowest setting

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

Blueair DustMagnet 5440i, Noise on the lowest setting: 31 dB

Winix 9800, Noise on the lowest setting: 26.2 dB

Phone app control

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

Blueair DustMagnet 5440i, Phone app control: Yes, maker states it

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

Carbon filter

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

Blueair DustMagnet 5440i, Carbon filter: Yes, maker states it

Winix 9800, Carbon filter: Yes, maker states it

Clean air delivery rate

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

Blueair DustMagnet 5440i, Clean air delivery rate: 216 CFM

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

Source

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

Blueair DustMagnet 5440i, source: blueair.comUpdated October 28, 2026

Winix 9800, source: winixamerica.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

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

Odor filterMatches: Yes
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

Blueair DustMagnet 5440i

335 sq ftRoom size, maker's rating

31 dBNoise on the lowest setting

216 CFMClean air delivery rate

Odor filterMatches: Yes
BudgetUnder $400on the maker’s store

$319.99

at Blueair's store · checked Oct 19

Amazon's price may differ.

See more(paid link)

All specs

Room size, maker's rating: 335 sq ft
HEPA filter name: HEPASilent
Noise on the lowest setting: 31 dB
Phone app control: Yes, maker states it
Carbon filter: Yes, maker states it
Clean air delivery rate: 216 CFM
SourceUpdated October 28, 2026: blueair.com

Winix 9800

522 sq ftRoom size, maker's rating

26.2 dBNoise on the lowest setting

Odor filterMatches: Yes
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

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

Coway Airmega 450
684 sq ft · HEPA · 23.6 dB Price band: $400 or more
Matches: Odor filter
$499.00
at Coway's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Blueair DustMagnet 5440i
335 sq ft · HEPASilent · 31 dB Price band: Under $400
Matches: Odor filter
$319.99
at Blueair's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Winix 9800
522 sq ft · True HEPA · 26.2 dB Price band: Under $400
Matches: Odor filter
$344.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Coway Airmega 350
550 sq ft · HEPA · 21.5 dB Price band: Under $400
Matches: Odor filter
$339.00
at Coway'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: Odor filter
$349.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Levoit Core 300-P
222 sq ft · 24 dB Price band: Under $300
Matches: Odor filter
$89.99
at Levoit'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
Matches: Odor filter
$99.99
at Blueair'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
Matches: Odor filter
$129.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Winix A231
246 sq ft · True HEPA · 25 dB Price band: Under $300
Matches: Odor filter
$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: Odor filter
$129.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Levoit Eleva 300X
250 sq ft · HEPA · 20 dB Price band: Under $300
Matches: Odor filter
$129.99
at Levoit's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Winix C535
370 sq ft · True HEPA · 27 dB Price band: Under $300
Matches: Odor filter
$154.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Coway Airmega Mighty2 Mini
217 sq ft · HEPA · 19.2 dB Price band: Under $300
Matches: Odor filter
$169.99
at Coway'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
Matches: Odor filter
$189.99
at Levoit'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
Matches: Odor filter
$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
Matches: Odor filter
$199.99
at Levoit'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
Matches: Odor filter
$229.99
at Blueair'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
Matches: Odor filter
$254.99
at Blueair's store · checked Oct 19
Amazon's price may differ.
See more(paid link)
Winix T810
418 sq ft · True HEPA · 23.8 dB Price band: Under $300
Matches: Odor filter
$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: Odor filter
$259.99
at Winix's store · checked Oct 27
Amazon's price may differ.
See more(paid link)
Levoit Eleva 500X
467 sq ft · HEPA · 22 dB Price band: Under $300
Matches: Odor filter
$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
Matches: Odor filter
$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
Matches: Odor filter
$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
Matches: Odor filter
$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
Matches: Odor filter
$299.99
at Levoit'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: Odor filter
$499.99
at Levoit'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
Not stated: Odor filter
$129.99
at Coway'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: Odor filter
$149.99
at Levoit'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
Not stated: Odor filter
$189.99
at Coway'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
Not stated: Odor filter
$229.99
at Coway'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
Not stated: Odor filter
$239.99
at Coway'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

Coway Airmega 450

Blueair DustMagnet 5440i

Winix 9800

Coway Airmega 450

Blueair DustMagnet 5440i

Winix 9800

All 31 matches

How we match

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