BreatheSmart 45i

$468
BreatheSmart 45i
We recommend the product and filter below.

BreatheSmart 45i

Product Description

Our mid-sized air purifier is ideal for large master bedrooms, open living and kitchen spaces in apartments, townhomes, or smaller houses. 

For busier lifestyles with children and pets, we recommend aiming for the two air exchange rate at 800 sq ft. of coverage when determining which unit best fits your needs. Higher traffic areas generally benefit from powerful units with more coverage.

$429.00
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BreatheSmart 45i

BreatheSmart 45i

HSA|FSA Eligible ? *One-time purchase only

Our mid-sized air purifier is ideal for large master bedrooms, open living and kitchen spaces in apartments, townhomes, or smaller houses. 

For busier lifestyles with children and pets, we recommend aiming for the two air exchange rate at 800 sq ft. of coverage when determining which unit best fits your needs. Higher traffic areas generally benefit from powerful units with more coverage.

Regular price $429.00
Sale price $429.00

Customize to your style and needs

Design

Customize your purifier to match your aesthetic.

Filter

Allergen Collector+ protection against harmful VOCs from smoke and household items.

Recommended
$62.10
  • Save 10% on future filter refills
  • Skip, modify, or cancel anytime
  • Worry-free delivery every

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Our Forever Guarantee policy requires the use of Alen filters for your purifier. Learn More

  • BreatheSmart 45i air purifier 
  • 45i HEPA air filter
  • Designer panel (optional)
  • Quick start guide

CADR i Clean Air Delivery Rate.

245

CFM i Cubic Feet per Minute

Speed 1: 70 CFM | Speed 2: 135 CFM | Speed 3: 175 CFM | Speed 4: 215 CFM

Coverage

Up to 1,600 sq ft (148.6 m2) | Cleans all air in room in 1 hour and 800 sq ft every 30 minutes @ highest setting

Dimensions

H 25" (63.50 cm) x W 15" (38.10 cm) x D 8.5" (21.59 cm)

Energy star i Products/Homes/Buildings that earn the ENERGY STAR prevent greenhouse gas emissions by meeting strict energy efficiency guidelines set by the U.S. Environmental Protection Agency and the U.S. Department of Energy

Yes

Filter cost

$69 | Using "Pure" Air Filter

Filter life max

12 months | @ Recommended 24hr/day operation

Filtration rate

Removes 99.9% of particles greater than 0.1 microns

Noise level

Lowest Speed 23 dBa | Highest Speed 49 dBa

Ozone

0 PPM when disengaged, less than 0.001 PPM with optional ionizer engaged

Power consumption

1.1 to 50 watts

Power supply

120 AV, 60HZ (2 Prong Power Cord)

Sensor

Automatic speed adjustment and coordinated to 5 color rings/ 4 speeds

Sound type

Pink Noise | All speeds

Speed settings

4

Warranty

Forever Guarantee | with Product Registration & Active Air Filter Subscription

Weight

15 lbs (6.8 kg)

We offer standard payment options with credit or debit card, PayPal, GPay, and Apple Pay, in addition to Buy Now, Pay Later options that are available with ShopPay. FSA/HSA payment is available to eligible customers through Flex.

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Meet our filters

Pure

Fresh

Odor

Pure

The intricately woven fibers of our HEPA filters are key to capturing common irritants like dust, pollen, hair and much more to help you breathe easier.

Fresh

The ideal combo for those seeking HEPA protection and relief from common irritants like dust, pollen, and hair with added carbon to protect against harmful VOCs from smoke and household items.

Odor

This all-in-one combo is ideal for those seeking to eliminate stubborn household odors while getting protection from airborne allergens and virsuses, VOCs emitted from smoke, cleaning supplies and much more.

Pure
Fresh
Odor

Pure

The intricately woven fibers of our HEPA filters are key to capturing common irritants like dust, pollen, hair and much more to help you breathe easier.

Fresh

The ideal combo for those seeking HEPA protection and relief from common irritants like dust, pollen, and hair with added carbon to protect against harmful VOCs from smoke and household items.

Odor

This all-in-one combo is ideal for those seeking to eliminate stubborn household odors while getting protection from airborne allergens and virsuses, VOCs emitted from smoke, cleaning supplies and much more.

See also

20%


Ranked in the quietest 20% of air purifiers on the market.


Quiet Mark Certified

Quiet Mark Certified

Learn more

Up to  5x


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


Asthma & Allergy Friendly

Asthma & Allergy Friendly

Learn more

93%


93% of participants reported improved sleep.


SleepScore Validated

SleepScore Validated

Learn more

What others are saying

Quiet and very efficient. It was shocking to see how much dust it collected.

Jeff

Noticed a big difference in my bedroom the next morning after setting up. My eyes feel better and aren’t red anymore. Room also smells better.

Cindy

I love this machine and the company customer service was awesome ~ best investment !!!

Janice

Picture the perfect spot for your
BreatheSmart 45i

Main Suite

Designed for spacious comfort, the 45i purifies up to 1,600 sq ft every hour or 800 sq ft every 30 minutes, keeping your main suite pure and serene.

Living Area

Ideal for high-traffic zones, the 45i purifies up to 1,600 sq ft every hour or 800 sq ft every 30 minutes, ensuring your living area stays clean and welcoming.

Family Room

Adapting to changing conditions, the 45i purifies up to 1,600 sq ft every hour or 800 sq ft every 30 minutes, maintaining a fun and healthy environment for everyone in your family room.

Picture the perfect spot for your

BreatheSmart 45i

Designed for spacious comfort, the 45i purifies up to 1,600 sq ft every hour or 800 sq ft every 30 minutes, keeping your main suite pure and serene.

Ideal for high-traffic zones, the 45i purifies up to 1,600 sq ft every hour or 800 sq ft every 30 minutes, ensuring your living area stays clean and welcoming.

Adapting to changing conditions, the 45i purifies up to 1,600 sq ft every hour or 800 sq ft every 30 minutes, maintaining a fun and healthy environment for everyone in your family room.

Main Suite
Living Area
Family Room

A purifier for every space.

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Customer Reviews + Q&A

FAQs

What makes the BreatheSmart 45i different from other air purifiers?

The Alen BreatheSmart 45i combines advanced HEPA filtration technology with optimized airflow for maximum efficiency and minimal noise. This allows for whisper-quiet removal of particulate matter, even on the highest setting, 24/7.

What is included with the BreatheSmart 45i purchase?

The BreatheSmart 45i package includes the air purifier unit, a pre-installed filter, and a user manual. Additional filters can be purchased separately.

Does the BreatheSmart 45i come with a warranty?

Yes, the 45i comes with Alen's Forever Guarantee. This lifetime warranty covers any manufacturing defects when you maintain an active filter subscription service. If your purifier ever has issues, Alen will fix or replace it for free.

How can I trust the Alen brand?

We are committed to transparency and customer satisfaction. You can find over 5,000 reviews on our website and third-party platforms that attest to the quality and reliability of our products.

How does the 45i compare to other brands?

The BreatheSmart 45i offers superior performance with advanced HEPA filtration, quieter operation, and the Forever Guarantee, which many competitors do not offer.

How large of an area can the BreatheSmart 45i cover?

The BreatheSmart 45i is designed to purify spaces up to 1,600 sq ft, making it ideal for living rooms, open-concept spaces, and medium rooms.

How does the BreatheSmart 45i improve sleep quality?

The 45i is engineered to emit a soothing pink noise, which promotes better sleep by masking disruptive sounds. It has been shown to improve sleep quality in a peer-reviewed study by SleepScore Labs.

What types of filters are available for the 45i?

The BreatheSmart 45i has four filter options: Pure (for allergens), Fresh (for chemical odors), Odor (for smoke and pet odors), and VOC/Smoke (for tough odors). All filters are interchangeable, so you can switch based on your needs.

What are the noise levels of the BreatheSmart 45i?

The 45i operates at whisper-quiet levels, even on the highest fan setting. The pink noise it generates is calming and helps create a peaceful environment.

Can I control the 45i remotely?

Yes, the 45i can be controlled remotely using the Alen Air app. You can monitor air quality and adjust settings from anywhere.

What’s included with my purchase of the BreatheSmart 45i?

The 45i comes with the air purifier unit, one pre-installed filter, and a user manual. Additional filters can be purchased separately. The app is available for Apple iPhones and Android.

How energy-efficient is the BreatheSmart 45i?

The 45i is designed to be energy efficient, consuming minimal electricity while maintaining high purification performance.

Can I leave the 45i running all the time?

Yes, the BreatheSmart 45i is designed for continuous operation. Running it 24/7 ensures optimal air quality in your space.

Does the 45i help with wildfire smoke?

Absolutely. The 45i with a VOC/Smoke filter captures fine smoke particles, making it ideal for areas affected by wildfires.

What is the power consumption of the BreatheSmart 45i?

The 45i consumes 50 watts on the highest setting, which is energy efficient given its high air purification power. It’s designed for continuous operation.

Does the BreatheSmart 45i help reduce odors and smoke?

Yes, with the Odor and VOC/Smoke filters, the 45i effectively removes odors from cooking, pets, and smoke. These filters neutralize airborne particles that cause unpleasant smells.

How does the BreatheSmart 45i help with allergies?

The 45i's HEPA filtration captures 99.99% of airborne particles down to 0.1 microns, effectively removing allergens like dust, pollen, and pet dander.

How often should I replace the filter?

Alen recommends replacing filters every 9-12 months, depending on usage and environmental factors. The Alen Air app can remind you when it’s time for a change.

Is the 45i safe for use around pets and children?

Yes, the 45i is safe for use around pets and children. Its design includes safety features like a child lock, and its quiet operation ensures it won't disturb your pets or sleeping children.

What does the red light around the power button mean?

The red light indicates poor air quality, as detected by the 45i's air quality sensor. It automatically adjusts fan speed to clean the air faster.