October 2021

Air Purifiers: Aggregated Ranking Report

This report contains an aggregate consensus of Air Purifier rankings posted by key online experts, as of October 2021.

At a glance - October 2021 Ranking

Scroll horizontally to browse this ranking table
Rank Change Price Air Purifier
WIRED
The Spruce Pets
NBC News
This Old House
CNET
Popular Mechanics
Wirecutter
Business Insider
Tom's Guide
Audacy
1
- $170
Coway AP-1512HH
-
-
-
-
3
1
1
-
1
-
2
- $120
Blue Pure 411
4
-
-
-
4
7
-
-
3
4
3
- $87
GermGuardian AC4825
-
-
8
2
-
3
-
-
-
6
4
- $500
Coway Airmega 400
2
7
-
-
5
-
-
-
4
-
5
- Check price
Honeywell Insight HPA5300B
3
1
-
-
-
-
-
-
-
3
6
- $298
Blueair Pure 211+
-
-
-
-
1
-
7
-
2
-
7
- $500
Honeywell HPA300
-
-
9
-
2
-
-
-
6
-
8
- $270
Coway Airmega 200M
1
-
-
-
-
-
2
-
-
-
9
- $76
Levoit LV-H132
-
6
7
-
-
-
-
-
7
-
10
- Check price
Dyson Purifier Cool TP07
-
-
2
-
-
-
-
-
-
2
11
- $899
IQAir HealthPro Plus
-
-
-
3
-
-
-
-
9
-
12
- $320
Alen BreatheSmart Classic
-
3
-
4
-
-
-
-
-
-
13
+7 $140
Blueair Pure 411 Auto
5
-
12
-
-
-
-
-
-
-
14
+2 Check price
Dyson Pure Humidify + Cool
6
-
-
-
-
6
-
-
-
-
15
+3 Check price
Honeywell HPA250B
8
-
-
-
-
10
-
-
-
-
16
-3 $220
Winix AM90
-
-
-
-
-
9
4
-
-
-
17
-3 $180
Levoit Core 400S
-
-
-
-
-
-
6
-
11
-
18
-3 $715
Austin Air HealthMate
-
-
10
-
-
-
-
-
5
-
19
-2 $799
Molekule Air
-
-
11
-
-
8
-
-
-
-

We ranked Coway AP-1512HH #1 in October 2021 because:

  • 4 independent experts mentioned it in their “best Air Purifiers” rankings.
  • Out of those, 3 experts ranked Coway AP-1512HH as #1.
Critic endorsements:
CNET

The other best air purifier for mid-sized rooms

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Popular Mechanics

Air Quality Sensor

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Wirecutter

Effective, efficient, and inexpensive

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Tom's Guide

The best air purifier overall

Pros
Consistently exceptional performance in real-world tests
Quiet
Low-profile design

Cons
Questionable customer support

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We ranked Blue Pure 411 #2 in October 2021 because:

  • 5 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
WIRED

Quietest Air Purifier

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CNET

Best air purifier for small rooms

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Popular Mechanics

Great value

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Tom's Guide

The best air purifier for small spaces

Pros
Energy efficient
Affordable

Cons
Small design with limited reach

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Audacy

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Methodology: combine opinions of key experts

Identify Experts

We identify key publishers and experts that consistently review and recommend Air Purifiers.

Capture Rankings

For each publisher we find a currently recommended "top 10" list of Air Purifiers, it must be updated in the last 9 months.

Aggregate Rankings

We put all those lists together and aggregate them. The more frequently a product is recommended, the higher it is in our ranking

Experts chosen for October 2021 ranking

We ranked GermGuardian AC4825 #3 in October 2021 because:

  • 4 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
NBC News

Go to ranking

This Old House

Best Value

Pros
This affordable unit requires minimal maintenance, clears air, and reduces odors. It’s a great pick for pet owners, as it’s designed to remove pet dander, odors, and hair.
Reduces pollutants in rooms up to 390 square feet
Charcoal filter removes odors
Optional UV-C light with Titanium Dioxide to reduce airborne bacteria, viruses, and germs

Cons
Deodorizing filters need to be replaced weekly
Can be a bit loud on its highest setting

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Popular Mechanics

UV-Light sanitizer

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Audacy

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We ranked Coway Airmega 400 #4 in October 2021 because:

  • 4 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
WIRED

Best for Large Rooms

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The Spruce Pets

Best for Large Rooms

Pros
Suitable for spaces larger than 1,000 square feet
Dual air intake design for faster filtration
Sleep mode automatically reduces fan speed when lights dim

Cons
Doesn't offer app control
Replacement filters are pricey

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CNET

Best air purifier for whole homes

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Tom's Guide

The best air purifiers for large spaces

Pros
High-performing dual filters
Aesthetically pleasing

Cons
Expensive

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We ranked Honeywell Insight HPA5300B #5 in October 2021 because:

  • 3 independent experts mentioned it in their “best Air Purifiers” rankings.
  • Out of those, 1 expert ranked Honeywell Insight HPA5300B as #1.
Critic endorsements:
WIRED

An Affordable Big-Room Air Purifier

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The Spruce Pets

Best Overall

Pros
Pet-specific filters available
See air quality info at a glance

Cons
Only available in black

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Audacy

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We ranked Blueair Pure 211+ #6 in October 2021 because:

  • 3 independent experts mentioned it in their “best Air Purifiers” rankings.
  • Out of those, 1 expert ranked Blueair Pure 211+ as #1.
Critic endorsements:
CNET

Best air purifier for large rooms

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Wirecutter

A stellar performer for larger rooms

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Tom's Guide

The most attractive best air purifier

Pros
Exceptional performance on highest speed
Fun color options

Cons
Loud on low speed
More expensive upfront and over time than competing models

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We ranked Honeywell HPA300 #7 in October 2021 because:

  • 3 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
NBC News

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CNET

Best air purifier for midsize rooms

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Tom's Guide

A good value pick among air purifiers

Pros
Portable and easy to use
Quiet on low speeds; relatively quiet on high setting

Cons
More expensive than some similar units
Significant maintenance requirements

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We ranked Coway Airmega 200M #8 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
  • Out of those, 1 expert ranked Coway Airmega 200M as #1.
Critic endorsements:
WIRED

Best for Small Rooms

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Wirecutter

Different look, same great performance

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We ranked Levoit LV-H132 #9 in October 2021 because:

  • 3 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
The Spruce Pets

Best for Small Rooms

Pros
Compact size
Offers true HEPA filtration

Cons
No timer or eco-mode function
Lacks air quality monitoring

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NBC News

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Tom's Guide

The best air purifier for very tight budgets

Pros
Decent performance for the price
Small and portable

Cons
Loud
Minimal features

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We ranked Dyson Purifier Cool TP07 #10 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
NBC News

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Audacy

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We ranked IQAir HealthPro Plus #11 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
This Old House

Premium Pick

Pros
Hospital- and FDA-approved
Quiet relative to other products reviewed
Device can be easily moved from room to room
Timer that conserves energy and prolongs filter life

Cons
New units may give off a chemical smell at first
Machine and filters are expensive

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Tom's Guide

The best air purifier for allergy sufferers

Pros
Individually tested units
Top-notch warranty
Medical-grade filters

Cons
Expensive to buy and maintain
Loud on higher speeds

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We ranked Alen BreatheSmart Classic #12 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
The Spruce Pets

Best Splurge

Pros
Features a color-coded air quality sensor light
Available in various finishes and colors
Filters up to 1,100 sq. ft. in 30 minutes

Cons
Large machine
Produces more noise than expected at higher speeds

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This Old House

Pros
SmartSensor technology automatically adjusts airflow to remove impurities and reduce odors
Covers large rooms, cleaning 1,100 sq. feet every 30 minutes
WhisperMax technology produces a pink noise to promote better sleep

Cons
Requires replacement filters
New units may give off a plastic smell

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We ranked Blueair Pure 411 Auto #13 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
WIRED

Same Silence,but Automatic

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NBC News

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We ranked Dyson Pure Humidify + Cool #14 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
WIRED

Best Luxury Purifier

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Popular Mechanics

Multi-functional

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We ranked Honeywell HPA250B #15 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
WIRED

Best Smart Air Purifier

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Popular Mechanics

For Large spaces

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We ranked Winix AM90 #16 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
Popular Mechanics

Smart connectivity

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Wirecutter

Exceptional performance, modern style

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We ranked Levoit Core 400S #17 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
Wirecutter

Great performance plus voice control

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Tom's Guide

A sleek, smart air purifier with few downsides

Pros
Sleek and futuristic
Rich feature set
Easy to set up and transport

Cons
Highest fan speed can get loud

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We ranked Austin Air HealthMate #18 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
NBC News

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Tom's Guide

The longest-lasting filters

Pros
Long filter life span
Effective for odor and chemical sensitivities

Cons
Expensive
Loud

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We ranked Molekule Air #19 in October 2021 because:

  • 2 independent experts mentioned it in their “best Air Purifiers” rankings.
Critic endorsements:
NBC News

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Popular Mechanics

Most innovative

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