Is the Alen 35i worth it at $289?

At $289 at Walmart as of November 7, 2026, it is a fair price for a true H13 HEPA unit with an odor filter and 700 sq ft coverage. It makes sense if odor and quiet operation matter more to you than app control.

How does the 35i differ from the BreatheSmart 45i?

The 45i covers larger rooms and moves more air, while the 35i is smaller and cheaper. Pick the 35i for bedrooms and medium rooms, the 45i for open living areas.

What size room does it handle?

Alen rates it for 700 sq ft, with a full air change in 1,000 sq ft in an hour or 500 sq ft in 30 minutes. In a large open room, expect slower cleaning at the edges.

Which filter comes in the box?

It ships with the H13 HEPA Ultimate (Odor) filter, which combines HEPA with an odor-absorbing layer. You can swap in Alen's other 35i filters for allergy or VOC focus.

Does it connect to an app or smart assistant?

No. The 35i has an on-unit display and controls only, with no Wi-Fi, app or voice control.

Air purifiers tend to drop during Black Friday and spring allergy sales. Check the price history on this page before buying if you are not in a hurry.

Where is the Alen 35i HEPA Air Purifier cheapest?

At Walmart, for $289.00, as of our latest check.

What do buyers say about the Alen 35i HEPA Air Purifier?

Rated 4.2 out of 5 from 10 ratings.

Where can I buy the Alen 35i HEPA Air Purifier?

3 stores we checked sell it, including Walmart, ALEN, Lowe's.

Alen 35i HEPA Air Purifier

Best price now

$289.00at WalmartObserved at 10:42 PM

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Alen 35i HEPA Air Purifier

Best price now

$289.00at WalmartObserved at 10:42 PM

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit Walmart

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Our take on the Alen 35i HEPA Air Purifier

The Alen BreatheSmart 35i is a HEPA air purifier for medium to large rooms, sold with an H13 HEPA Ultimate (Odor) filter that targets pet, diaper and household smells along with dander, dust, mold and germs. Alen rates it for 700 sq ft of coverage and says it cleans 1,000 sq ft in an hour or 500 sq ft in 30 minutes, and it sits in the quietest 20% of purifiers by the company's ranking. It has a display and a simple control layout rather than app or smart-home features. The best new price is $289 at Walmart as of November 7, 2026, with three stores selling it new.

Best forPet owners dealing with odor and danderBedrooms and living rooms up to about 700 sq ftSmoke, cooking and cleaning-fume odorsBuyers who want a quiet purifier without app setup

Pros

True H13 HEPA filter included, with an odor-focused carbon layer
High clean-air delivery for its size: 1,000 sq ft in an hour
Rated among the quietest 20% of purifiers
Simple display and controls, no account or app needed
Replacement filters are widely sold and easy to swap

Cons

No Wi-Fi, app or smart-home control
Odor filter needs replacing more often in smoky or pet-heavy homes
Only 10 ratings on record, so the 4.2 score is thin evidence
Replacement filters cost more than generic HEPA units'
Bulky floor unit compared with small-room purifiers

Alen 35i HEPA Air Purifier prices at every store

WalmartNew
In stockSold by AlenReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$289.00Free shippingObserved at 10:42 PM
Visit Walmart
ALENNew
In stock
$289.00Free shippingObserved at 10:42 PM
Visit ALEN
Lowe'sNew
In stock
$289.00Free shippingObserved at 10:42 PM
Visit Lowe's

Store links may earn us a commission. Some prices via Klarna.

Alen 35i HEPA Air Purifier price history

Lowest price we've seen: $289.00 on Nov 8 at ALEN. Tracked across 2 stores since Nov 8.

What reviewers say

4.2 / 510 ratings

Feedback is limited but positive overall, at 4.2 out of 5 from 10 ratings. Owners mainly credit it for cutting pet and cooking odors and for running quietly in bedrooms.

What people mention

Odor removalPraisedOwners say it clears pet and cooking smells from a room within hours.
NoiseMixedQuiet at low speeds, but the top fan setting is loud enough to notice.
Filter costCriticisedReplacement HEPA and odor filters are a recurring expense.
SetupPraisedOwners describe unboxing, filter install and first run as quick and simple.
BuildPraisedBuyers call the cabinet solid and well finished.

About the Alen 35i HEPA Air Purifier

Alen BreatheSmart 35i with H13 HEPA Ultimate (Odor) air filter - Neutralizes pet, diaper, and other stubborn household odors & captures pet dander, allergens, dust, mold, and germs. Purifies air up to 1,000 sq ft every hour, or 500 sq ft every thirty minues. This all-in-one combo is ideal for those seeking to eliminate stubborn household odors while protecting against airborne allergens and viruses, VOCs emitted from smoke, cleaning supplies, and more. Ranked in the quietest 20% of air purifiers on the market.

Specifications

color: OtherSource
configuration: FreshSource
actual_color: UltimateSource
Filter Included: YesSource
Filter Type: HEPA Filter

Questions and answers

Is the Alen 35i worth it at $289?: At $289 at Walmart as of November 7, 2026, it is a fair price for a true H13 HEPA unit with an odor filter and 700 sq ft coverage. It makes sense if odor and quiet operation matter more to you than app control.
How does the 35i differ from the BreatheSmart 45i?: The 45i covers larger rooms and moves more air, while the 35i is smaller and cheaper. Pick the 35i for bedrooms and medium rooms, the 45i for open living areas.
What size room does it handle?: Alen rates it for 700 sq ft, with a full air change in 1,000 sq ft in an hour or 500 sq ft in 30 minutes. In a large open room, expect slower cleaning at the edges.
Which filter comes in the box?: It ships with the H13 HEPA Ultimate (Odor) filter, which combines HEPA with an odor-absorbing layer. You can swap in Alen's other 35i filters for allergy or VOC focus.
Does it connect to an app or smart assistant?: No. The 35i has an on-unit display and controls only, with no Wi-Fi, app or voice control.
When is it cheapest?: Air purifiers tend to drop during Black Friday and spring allergy sales. Check the price history on this page before buying if you are not in a hurry.
Where is the Alen 35i HEPA Air Purifier cheapest?: At Walmart, for $289.00, as of our latest check.
What do buyers say about the Alen 35i HEPA Air Purifier?: Rated 4.2 out of 5 from 10 ratings.
Where can I buy the Alen 35i HEPA Air Purifier?: 3 stores we checked sell it, including Walmart, ALEN, Lowe's.

Stores we've priced the Alen 35i HEPA Air Purifier at

Lowe's deals and prices

Source

Functions

Air PurificationSource

Features

DisplaySource

Operating Area (sq. ft) (sqft)

700.0Source