Best 2021 Air Purifiers for odor reduction

#1 Honeywell HPA5300
4.6

Customer evidence for odor reduction was strongly positive across 14 review(s), based only on cited transcript evidence.

Pros: noise level, air purification performance

Cons: filter replacement cost, reliability

#2 PuroAir 240
4.6

Odor reduction is a strong everyday-use theme for cooking smells, pets, litter boxes, mustiness, and stale rooms. Strong neighbor smoke is the major odor case where it disappointed.

Pros: noise level, air purification performance

Cons: filter replacement cost, air quality sensor accuracy

#3 AirDoctor 5000
4.6

Odor control is praised for both everyday smells and mildew. One owner says it eliminated mildew odor in a cabinet, while another highlights toxic-odor reduction.

Pros: overall satisfaction, air purification performance

#4 MOOKA B-D02L
4.5

Odor reduction is the most praised benefit among customers, especially for cooking, cat litter, musty rooms, pets, and old-house smells; expert testing is more skeptical.

Pros: noise level, air purification performance

Cons: filter replacement cost, reliability

#5 Coway Airmega 250S
4.5

Odor reduction evidence was positive, with cooking smells reduced and pelleted carbon praised for odors and gases.

Pros: air purification performance, app connectivity

Cons: size and footprint, value for money

#6 AROEVE MK01
4.2

Odor reduction is one of the most praised customer benefits, especially for pets, litter boxes, smoke smells, cooking, bedrooms, and stale rooms. Expert testing is more skeptical for heavy odors...

Pros: noise level, air purification performance

Cons: room coverage, activated carbon filter

#7 Levoit 400S
4.1

Odor reduction was useful for cooking, pets, trash and light smoke, but reviewers repeatedly warned that deep odor or cigarette-smoke control requires more carbon or ventilation.

Pros: air purification performance, app connectivity

Cons: true HEPA filter, pre-filter quality

#8 Coway Airmega 250
4.0

Odor reduction was mostly positive for fire stink, cooking smells and freshness, but one reviewer did not notice much kitchen-odor improvement.

Pros: maintenance ease, air purification performance

Cons: filter replacement cost

#10 Levoit Core 300S
3.9

Odor reduction was mixed-positive: reviewers saw improvements with cooking and household odors, but several noted lingering smells or weaker instant smell detection.

Pros: noise level, app connectivity

Cons: VOC sensor accuracy, handle design

#11 Dyson Purifier Hot+Cool Formaldehyde, HP09
3.8

Odor reduction was often positive for cooking, smoke, fragrances, and general smells, with one severe odor case reporting failure.

Pros: heating performance, air circulation

Cons: value for money, size and footprint

#12 Honeywell HPA830W
3.7

Odor evidence is mixed: one expert reports weak odor reduction, while another and a customer notice improvement with smells or smoke odor.

Pros: noise level, air purification performance

Cons: CADR rating, activated carbon filter

#13 Levoit Mini-P
3.7

Odor reduction was mixed, with some reviewers praising removed smells and others noting weaker odor neutralization.

Pros: noise level, aromatherapy feature

Cons: room coverage, filter life

#14 Alen BreatheSmart 75i
3.6

Odor evidence is mixed-positive: many note fresher air or cooking/smoke odor help, while some report plastic/filter smells.

Pros: air purification performance, allergen reduction

Cons: customer support, condition on arrival

#15 Dyson Purifier Cool Formaldehyde TP09
3.4

Odor reduction is mixed, with strong praise for removing cooking, musty, and off-gassing smells, but repeated complaints about chemical odors from the unit itself.

Pros: air purification performance, real-time air quality monitoring

Cons: value for money, noise level

#16 Dyson Purifier Cool Gen1 TP10
3.2

5 reviews provide opinionated evidence for odor reduction.

Pros: noise level, air purification performance

Cons: air circulation, value for money

#17 Dyson Purifier Cool TP07
2.8

Odor reduction is often positive for cooking smells and freshness, though one long-term owner reports an awful smell from the unit.

Cons: air circulation, overall satisfaction

#18 GermGuardian AC4825
2.4

Odor reduction is the biggest split: some reviewers found odors improved, while several testing-focused reviews said the carbon stage is weak for gas and odor control.

Pros: noise level, air purification performance

Cons: value for money, room coverage