20 Most Recommended Air Purifiers on Reddit
April 24, 2025
Based on aggregated reviews from 488 discussions in the past 1 year
Full list with comments analyzed, filtering etc (updated daily) ->

Coway
Airmega AP-1512HH Mighty

Winix
5500-2

Coway
Airmega 400

Levoit
Core 300S

Coway
AirMega 150 (AP-1019C)

Levoit
Vital 200S

Coway
Airmega 400S

Winix
C545

Levoit
Core 300-P

Blueair
Blue Pure 211i Max

CleanAirKits
Corsi-Rosenthal Box

Levoit
Core 600S-P

Coway
Airmega 200

Austin Air
Healthmate Plus

Coway
Airmega 250

Honeywell
HPA300

Blueair
Blue 211+ Auto

Austin Air
HealthMate

Alen
BreatheSmart 75i

Winix
C535/C909
FAQs
The ranking is based on aggregated user sentiment from Reddit. The ranking algorithm takes into account 1) the ratio of positive to negative user sentiment, and 2) the volume of user sentiments.
The intention is to show which Air Purifiers are the most well reviewed.
Green = no. of users who expressed sentiment.
Orange = no. of users who expressed neutral sentiment.
Red = no. of users who expressed negative sentiment.
Details on the ranking algorithm:
For each model we calculate the normalized difference between the number of positive and negative user sentiments, and the normalized ratio betweeen the number of positive and negative user sentiments. We then weight the absolute difference slightly more heavily than the ratio (0.7 vs 0.3) to determine the final score for ranking.