Alen

35i

17 positive 2 neutral 4 negative

Based on 23 Reddit mentions

$279.99

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ALEN BreatheSmart Flex for bedroom

I have an Alen 35i, which is a smaller and newer model than what you’re looking at. It runs very quietly for the bedroom. This brand is pretty high-end, though, and if you’re not picky about which boxes need to be checked, you can certainly find something cheaper that filters the air equally well.

puffic in r/AirPurifiers

April 27, 2026 8:35 PM

2

Thoughts on this air purifier?

This stuff is so fascinating! I've also stumbled upon BreatheSmart 35i and the Coway Airmega AP-1512HH. Our living room is 25' x 20' x 10' (ceilings). I'll check out those Winix ones and can hopefully afford to get 2. Bonus that the Alen's are FSA/HSA eligible.

toysofvanity in r/AirPurifiers

March 5, 2026 10:42 PM

2

looking for air purifier for ~110 sq. ft. (dorm) room, mostly concerned with spread of viruses/bacteria

I think alen air would suit you.. you have the budget for it.. specifically, alen breathsmart 35i - it’s expensive but quiet.. has good carbon for vocs should you need it.. lifetime warranty so it can grow with you.. much more cadr than you need for the room, so you dont have to run it on high.. aga

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JamezDare in r/AirPurifiers

February 14, 2026 8:51 AM

1

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