
AirFanta
CA$232.00

Alen
RedDB rating based on Reddit opinions
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CA$441.59
Sentiment summary across the product areas Reddit users mention most.
Original Reddit posts and comments behind this analysis.
The Flex model has carbon, I have one. You choose the filter you want. So you get their best filter, I think 90 bucks at 450i size, has carbon + more material than most affordable hepa units. 60 dollars is just hepa. They have a middle one in between for like 70 or 80. So for good carbon, get the be
...Person51389 in r/AirPurifiers
August 10, 2026 at 5:28 a.m.
2
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 at 8:35 p.m.
2
I've wanted Alen for years. Got the 75i and 35i. 35i was fine, but not that impressed with odor removal and I have the ultimate filter. Small kitchen and if I cook a burger, the smell is still there in the morning-even on turbo. 75i makes a knocking sound even on the lowest speed and that is right o
...blues2u in r/AirPurifiers
June 2, 2026 at 2:47 a.m.
2
I’m using Alen 45i and 35i in our home and they work great. we have 2 cats and these machines remove any pet and cooking odors. filter needs to be replaced once a year. Having an app makes it handy to check or change settings as needed, also has a schedule option. good machines for the money.
Opposite_Yard_1857 in r/AirPurifiers
March 24, 2026 at 12:28 a.m.
3
Purifiers under 200 wont do much for odors unfortunately. Or not for very long. You need thicker filters with black carbon pellets -these absorb odors. The normal white filters in most purifiers just capture particles. Does nothing for odors. Under 200 dollar units will fair chance have a thin carbo
...Person51389 in r/AirPurifiers
March 17, 2026 at 4:42 p.m.
3
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 at 10:42 p.m.
2
HEPA purifiers reduce the particulate component of cigarette smoke, especially fine PM2.5 and even a portion of ultrafine particles, but they don’t eliminate gaseous toxins or all odors. You would need plenty of sorbent media for the latter. You could try a Levoit Vital 200S-P, it’s $20 cheaper at V
...xPurplexAnarchyx in r/AirPurifiers
March 31, 2026 at 7:08 p.m.
2
The ventilator is a good idea as someone else suggested, as no purifier under 200ish bucks will do much for odors. A good unit for odors is an Alen45i, but it's 350 bucks. An Alen 35i I think is 290. One of the best is AustinAir and they are 750. So is suggest Austin Air, or maybe an Alen. For a ven
...Person51389 in r/AirPurifiers
March 13, 2026 at 12:00 a.m.
2
I'm trying to look for the Flex model's product page on the Alen site but can't find it. Did they discontinue this line or something? Ebay third-party sellers way overcharge the Alen products. I'd have to pay 2-3 times as much to buy a 35i model from Ebay as I would from the Alen website, while not
...Iris-Sofia in r/AirPurifiers
August 10, 2026 at 6:19 a.m.
1
Alen 45i Flex, so Alen has a lifetime warranty if you stay in filter replacement program. One of the only brands in the industry with a lifetime warranty. It doesn't move air super-fast though, but slow and steady. Aldo I think 400-450 with the Flex being 50 cheaper with no smart features + no ioniz
...Person51389 in r/AirPurifiers
July 30, 2026 at 4:24 p.m.
1

AirFanta
CA$232.00

Levoit
CA$169.99

Coway
CA$1,374.78