Air purifiers for
Allergies

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Create a Healthier Home for Allergy Sufferers

Suffering from allergy symptoms like congestion, sneezing, itchy eyes, runny nose, or a persistent cough? You’re not alone. Indoor air can contain concentrated levels of airborne allergens and can be up to five times more polluted than outdoor air. The good news is that every Alen® filter uses True HEPA filtration designed to capture 99.97% of airborne particles as small as 0.3 microns, helping reduce allergen exposure so you can breathe easier, no matter what you’re allergic to.

Shop our award-winning air purifiers, select our Pure Filter, and start feeling better.

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50%

50% of illnesses are caused or aggravated by poor indoor air quality.

50+ million

More than 50 Americans experience allergies each year.

Up to 5x

Indoor air pollutant levels can be 2 to 5 times higher than outdoor levels.

Alen® Products are

Certified Asthma & Allergy Friendly®

Learn more
Image Alen<sup>®</sup> Products are

Alen® Products are

Certified Asthma & Allergy Friendly®

Learn more
Alen BreatheSmart 75i True HEPA Air Purifier | White

BreatheSmart 75i

BreatheSmart 75i

HSA|FSA Eligible

Coverage:

1,400 - 2,800 sq ft

App Controlled:

Yes

From:

$799.00

See more
From $799.00
From $799.00
HSA|FSA Eligible ? *One-time purchase only
Alen BreatheSmart 45i HEPA Air Purifier | White

BreatheSmart 45i

BreatheSmart 45i

HSA|FSA Eligible

Coverage:

950 - 1,900 sq ft

App Controlled:

Yes

From:

$449.00

See more
From $449.00
From $449.00
HSA|FSA Eligible ? *One-time purchase only
BreatheSmart 35i

BreatheSmart 35i

BreatheSmart 35i

HSA|FSA Eligible

Coverage:

700 - 1,400 sq ft

App Controlled:

Yes

From:

$289.00

See more
From $289.00
From $289.00
HSA|FSA Eligible ? *One-time purchase only
Alen BreatheSmart 25i Air Purifier

BreatheSmart 25i

BreatheSmart 25i

HSA|FSA Eligible

Coverage:

400 - 800 sq ft

App Controlled:

Yes

From:

$179.00

See more
From $179.00
From $179.00
HSA|FSA Eligible ? *One-time purchase only

Common Allergens Captured by Alen®

Just regular old dust contains a plethora of irritants that can cause inflammation, increase allergy symptoms, and leave you feeling less than your best. Alen® captures 99.9% of those irritants (even the really tiny ones).

Dust mites

Dust mites

Dead skin

Dead skin

Soil

Soil

Dead insects

Dead insects

Pollen

Pollen

Bacteria

Bacteria

Hair

Hair

Fibers

Fibers

Choose the Pure Filter for Allergy Relief

Choose the Pure Filter for Allergy Relief

For general allergies and dust, we recommend our Pure Filter – it’s a medical-grade HEPA filter that captures 99.9% of particles in your air as small as 0.1 micron (that means it captures all those allergens and dust particles, even the ones you can’t see).

This HEPA filter is the base for all our filters, but if you have more specific concerns like pet dander or smoke, we have filter options that include extra layers of filtration to address these concerns more specifically.

Still not sure which Alen®+ filter combination you need?

Take the find my purifier quiz
Pure air for life: the Alen<sup>®</sup> difference
Pure air for life: the Alen<sup>®</sup> difference

Pure air for life: the Alen® difference

Alen’s award-winning air purifiers work quietly and efficiently in the background, automatically reacting and adjusting to the air quality in your room to capture 99.9% of particles as small as 0.1 microns.

We are also the only air purifier brand to offer a Forever Guarantee. You read that right—with product registration and regular filter replacement, we guarantee our purifiers for life. That’s a lifetime of pure air that’s perfect for you (or as we like to call it, Utopiair™).

How Alen® filtration works

Our medical-grade HEPA filters work in tandem with our powerful air purifier motors to capture tough, tiny particles for a deeper, more thorough clean. Here’s what that process looks like in more detail:

Step 1

Step 1

Air enters through the large side gills and is pulled evenly through the Alen® filter.

Step 2

Step 2

Alen® filters remove 99.9% of harmful airborne particulates, including viruses, germs, bacteria, dust, and allergens.

Step 3

Step 3

Clean air is released from the purification vents and sent vertically into the space to maximize disbursement of cleaned air.

Pure air makes headlines

The 9 Best Air Purifiers to Keep Allergies at Bay All Year Round

The 9 Best Air Purifiers to Keep Allergies at Bay All Year Round
The Quietest Air Purifiers for Clean Air in Your Home

The Quietest Air Purifiers for Clean Air in Your Home
Dr. Phil Gifts Audience Alen BreatheSmart 45i Air Purifiers

Dr. Phil Gifts Audience Alen BreatheSmart 45i Air Purifiers
The 7 Best Air Purifiers
for Dust

The 7 Best Air Purifiers
for Dust
9 Best Air Purifiers of 2023, According to Testing

9 Best Air Purifiers of 2023, According to Testing
The 5 Best Air Purifiers for Pets of 2023, According to Our Test

The 5 Best Air Purifiers for Pets of 2023, According to Our Test

10,000+ five-star reviews

Opening review

I have severe allergies and Alen air purifiers have changed my life! I finally have allergy relief in my own home! I have the BreatheSmart 75i in my living room and the FLEX in my bedroom.

Closoing review
Opening review

I have 4 Alen air purifiers in my home and I have noticed a significant change in my breathing and allergies since I’ve purchased them.

Closoing review
Opening review

I love it. The air is much cleaner. So much less dust on the ceiling fan.

Closoing review

Start breathing easier with a Pure Filter

Ready to say goodbye to your allergy symptoms and pesky household dust? Choose your Alen® below, select the Pure Filter and start breathing Utopiair™. 

  • Alen BreatheSmart 75i True HEPA Air Purifier | White

    BreatheSmart 75i

    BreatheSmart 75i

    HSA|FSA Eligible

    Coverage:

    1,400 - 2,800 sq ft

    App Controlled:

    Yes

    From:

    $799.00

    See more
    From $799.00
    From $799.00
    HSA|FSA Eligible ? *One-time purchase only
  • Alen BreatheSmart 45i HEPA Air Purifier | White

    BreatheSmart 45i

    BreatheSmart 45i

    HSA|FSA Eligible

    Coverage:

    950 - 1,900 sq ft

    App Controlled:

    Yes

    From:

    $449.00

    See more
    From $449.00
    From $449.00
    HSA|FSA Eligible ? *One-time purchase only
  • BreatheSmart 35i

    BreatheSmart 35i

    BreatheSmart 35i

    HSA|FSA Eligible

    Coverage:

    700 - 1,400 sq ft

    App Controlled:

    Yes

    From:

    $289.00

    See more
    From $289.00
    From $289.00
    HSA|FSA Eligible ? *One-time purchase only
  • Alen BreatheSmart 25i Air Purifier

    BreatheSmart 25i

    BreatheSmart 25i

    HSA|FSA Eligible

    Coverage:

    400 - 800 sq ft

    App Controlled:

    Yes

    From:

    $179.00

    See more
    From $179.00
    From $179.00
    HSA|FSA Eligible ? *One-time purchase only

Allergy Air Purifier FAQs

What is the best air purifier for allergies?

The best air purifier for allergies uses a True HEPA filter that captures 99.97% of airborne particles as small as 0.3 microns, including pollen, dust mites, pet dander, and other common triggers. These microscopic allergens can contribute to sneezing, coughing, itchy eyes, and congestion. Look for strong airflow (CADR), proper room coverage, and continuous filtration to reduce overall allergen exposure and improve indoor air quality. Alen air purifiers combine True HEPA filtration with powerful airflow to deliver reliable, whole-room allergy relief.

What should I look for in a bedroom air purifier for allergies?

Allergy symptoms like nighttime congestion, coughing, and sneezing often worsen in the bedroom due to prolonged exposure while you sleep. Choose a True HEPA air purifier that runs quietly, covers your full room size, and operates continuously through the night. Low-decibel performance, consistent airflow, and long-lasting filters help reduce airborne allergens so you can breathe easier and wake up feeling more rested. Alen air purifiers operate as quietly as 20 decibels on lower settings, making them ideal for uninterrupted, all-night allergy relief in the bedroom.

Is a HEPA air purifier better for allergies?

Yes. True HEPA filtration is considered one of the most effective technologies for allergy relief because it physically captures airborne allergens such as pollen, dust, and pet dander down to 0.3 microns. By trapping these particles inside dense filter fibers, HEPA purifiers help reduce exposure that can trigger sneezing, sinus pressure, and irritated airways, rather than simply dispersing particles back into the room.

What is better for allergies, humidifier or air purifier?

An air purifier is generally more effective for allergies because it removes airborne allergens that trigger symptoms like sneezing, congestion, and itchy eyes. A humidifier only adds moisture and does not capture allergy-causing particles. While balanced humidity may improve comfort, reducing exposure to allergens through True HEPA filtration is the more direct solution for allergy relief.