I'm sticking with Alen and their filters
FairManner1292 in r/AirPurifiers
SourceAlen BreatheSmart 45i vs Alen BreatheSmart Flex
Reddit head-to-head
6 Reddit comments and posts discuss both products: 2 lean toward Alen BreatheSmart 45i, 3 toward Alen BreatheSmart Flex, and 1 don't pick a side.
Alen BreatheSmart 45i · 2 Neutral · 1 Alen BreatheSmart Flex · 3
Why Redditors pick the Alen BreatheSmart 45i
Alens are quiet and good for both VOCs + particulates, with their best filters
Person51389 in r/AirPurifiers
SourceWhy Redditors pick the Alen BreatheSmart Flex
Either of these Alen options are so much better
IDontLikeYourToan in r/AirPurifiers
SourceOnly 40 db at its highest setting which is great for babies
NumerousAssumption47 in r/AirPurifiers
SourcePersonally, I love my Alen 45i and it sounds like a good fit
Person51389 in r/AirPurifiers
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.
Alen BreatheSmart 45i
63 Reddit mentions
$383.90
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Alen BreatheSmart Flex
23 Reddit mentions
$349.00
Buy on Amazon
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purification performance
filter quality
value
noise level
warranty
coverage
build quality
filter cost
odor control
energy efficiency
| Feature | Alen BreatheSmart 45i | Alen BreatheSmart Flex |
|---|---|---|
| Price | ||
| purification performance | | |
| filter quality | | |
| value | | |
| noise level | | |
| warranty | | |
| coverage | | |
| build quality | | |
| filter cost | | |
| odor control | | |
| energy efficiency | | |
Products
#15
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#16
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Frequently asked questions
Which is better according to Reddit: Alen BreatheSmart 45i or Alen BreatheSmart Flex?
6 Reddit comments and posts discuss both products: 2 lean toward Alen BreatheSmart 45i, 3 toward Alen BreatheSmart Flex, and 1 don't pick a side. Overall, Reddit leans toward Alen BreatheSmart Flex.
How do Alen BreatheSmart 45i and Alen BreatheSmart Flex compare in overall Reddit sentiment?
Across all discussions RedDB tracks, Alen BreatheSmart 45i has 90% positive sentiment over 63 Reddit mentions, while Alen BreatheSmart Flex has 100% positive sentiment over 23 mentions.