uses HEPASilent™ tech which allows for high airflow with much less fan noise
One_Mess525 in r/HomeClimateTech
SourceBlueair Blue Pure 311 vs Alen BreatheSmart 75i
Reddit head-to-head
12 Reddit comments and posts discuss both products: 3 lean toward Blueair Blue Pure 311, 9 toward Alen BreatheSmart 75i, and 0 don't pick a side.
Blueair Blue Pure 311 · 3Neutral · 0Alen BreatheSmart 75i · 9
Why Redditors pick the Blueair Blue Pure 311
360-degree intake and a fabric pre-filter that comes in different colors to match your decor
One_Mess525 in r/HomeClimateTech
Sourcesignificantly quieter than the previous generation
One_Mess525 in r/HomeClimateTech
SourceWhy Redditors pick the Alen BreatheSmart 75i
The "BIFL" Lifetime Legend: Alen BreatheSmart 75i
One_Mess525 in r/HomeClimateTech
SourceThe "BIFL" Lifetime Legend: Alen BreatheSmart 75i
One_Mess525 in r/HomeClimateTech
SourceThe "BIFL" Lifetime Legend: Alen BreatheSmart 75i
One_Mess525 in r/HomeClimateTech
SourceFeature comparison
Green marks the row winner: the strongest supported feature sentiment with at least 3 mentions, or the lowest listed price. Everything else stays neutral.
Blueair Blue Pure 311
47 Reddit mentions
Out of stock
Alen BreatheSmart 75i
70 Reddit mentions
$799.00
Buy on Amazon
We may earn a small commission.
noise level
filter quality
build quality
coverage area
purification performance
warranty
Blueair Blue Pure 311No mentions
allergen control
design
value
smart features
| Feature | Blueair Blue Pure 311 | Alen BreatheSmart 75i |
|---|---|---|
| Price | Out of stock | |
| noise level | ||
| filter quality | ||
| build quality | ||
| coverage area | ||
| purification performance | ||
| warranty | No mentions | |
| allergen control | ||
| design | ||
| value | ||
| smart features |
Products
Blueair
Blue Pure 311
54.4/100
47 opinionsReddit score
RedDB's algorithmic rating based only on relevant Reddit opinions.
It uses one opinion per author: their highest-upvoted mention.
Evidence volume, recency, and votes affect the result.
The opinion count and sentiment bar include all analyzed relevant opinions; the bar does not represent the score out of 100.
42 positive0 neutral5 negative
Out of stock
#48
Alen
$799.00
BreatheSmart 75i
50.6/100
70 opinionsReddit score
RedDB's algorithmic rating based only on relevant Reddit opinions.
It uses one opinion per author: their highest-upvoted mention.
Evidence volume, recency, and votes affect the result.
The opinion count and sentiment bar include all analyzed relevant opinions; the bar does not represent the score out of 100.
66 positive0 neutral4 negative
Buy on Amazon
We may earn a small commission.
Frequently asked questions
Which is better according to Reddit: Blueair Blue Pure 311 or Alen BreatheSmart 75i?
12 Reddit comments and posts discuss both products: 3 lean toward Blueair Blue Pure 311, 9 toward Alen BreatheSmart 75i, and 0 don't pick a side. Overall, Reddit leans toward Alen BreatheSmart 75i.
How do Blueair Blue Pure 311 and Alen BreatheSmart 75i compare in overall Reddit sentiment?
Across all discussions RedDB tracks, Blueair Blue Pure 311 has 89% positive sentiment over 47 Reddit mentions, while Alen BreatheSmart 75i has 94% positive sentiment over 70 mentions.
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