25 Most Recommended Air Purifiers on Reddit
July 24, 2025
Based on aggregated reviews from 485 discussions & 2172 redditors in the past 1 year

Coway
Airmega AP-1512HH Mighty

Winix
5500-2

Levoit
Core 300S

Coway
Airmega 400

Coway
AirMega 150 (AP-1019C)

Levoit
Vital 200S

Levoit
Core 300-P

Winix
C545

Coway
Airmega 400S

Blueair
Blue Pure 211i Max

CleanAirKits
Corsi-Rosenthal Box

Levoit
Core 600S-P

Levoit
Core 400S-P

Coway
Airmega 200

Rabbit Air
A3 Ultra Quiet Air Purifier SPA-1000N

Coway
Airmega 250
Winix
C535/C909

Austin Air
HealthMate

Austin Air
Healthmate Plus

Alen
BreatheSmart 75i

GermGuardian
AC4825E

Blueair
Blue 211+ Auto

Honeywell
HPA300

AirFanta
AirFanta 3Pro

CleanAirKits
Brisk Box Kit
FAQs
The ranking is based on aggregated user sentiment from Reddit. It aims to show which Air Purifiers are the most well reviewed.
Ranking factors:
- The number of positive user sentiments
- The ratio of positive to negative user sentiment
- How specific the user was in their reference to the model
Scoring mechanism:
- Each user contributes up to 1 "vote" per model, regardless of no. of comments on it.
- A user's vote is less than 1 if the user does not specify the exact model - their 1 vote is "spread out" among the possible models.
- More popular models are given more weight (to account for the higher likelihood that they are the model being referred to).
Score calculation for ranking:
- We combine the normalized positive sentiment score and the normalized positive:negative ratio (weighted 75%-25%)
- This score is used to rank the Air Purifiers in descending order