It has wheels and is very energy efficient
sissasassafrastic in r/AirPurifiers
Source16 Reddit comments and posts discuss both products: 5 lean toward Coway ProX(W), 6 toward Alen 75i, and 5 don't pick a side.
It has wheels and is very energy efficient
sissasassafrastic in r/AirPurifiers
Sourcepretty much disappears in my living room on speed 1 when placed 10' away
theorist9 in r/AirPurifiers
Sourceconsistently rated #1 by Consumer Reports for 2026
One_Mess525 in r/HomeClimateTech
Sourcethese work well for me as I like the aesthetics and the ease of controls
FairManner1292 in r/AirPurifiers
SourceThe "BIFL" Lifetime Legend: Alen BreatheSmart 75i
One_Mess525 in r/HomeClimateTech
SourceThe "BIFL" Lifetime Legend: Alen BreatheSmart 75i
One_Mess525 in r/HomeClimateTech
SourceGreen marks the row winner: the strongest supported feature sentiment with at least 3 mentions, or the lowest listed price. Everything else stays neutral.
We may earn a small commission.
We may earn a small commission.
| Feature | Coway ProX(W) | Alen 75i |
|---|---|---|
| Price | ||
| purification performance | | |
| coverage | | |
| noise level | | |
| value | | |
| build quality | | |
| filter quality | | |
| odor control | | |
| warranty | | |
| filter cost | | |
| airflow | | |
We may earn a small commission.
We may earn a small commission.
16 Reddit comments and posts discuss both products: 5 lean toward Coway ProX(W), 6 toward Alen 75i, and 5 don't pick a side. Overall, Reddit is fairly split — the better pick depends on your priorities.
Across all discussions RedDB tracks, Coway ProX(W) has 91% positive sentiment over 117 Reddit mentions, while Alen 75i has 86% positive sentiment over 106 mentions.