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Take control of your household's wellness
The Alen® BreatheSmart 75i Air Purifier isn't just a game changer—it's a life changer. Consumer Reports recommends BreatheSmart 75i with an overall EXCELLENT score. Alen® air purifiers are engineered to outperform by combining power with efficacy and superb filtration technology.
Buy NowTake control of your household's wellness
The Alen® BreatheSmart 75i Air Purifier isn't just a game changer—it's a life changer. Consumer Reports recommends BreatheSmart 75i with an overall EXCELLENT score. Alen® air purifiers are engineered to outperform by combining power with efficacy and superb filtration technology.
Buy Now
Most powerful
At only 51 decibels maximum, this whisper-quiet unit never disrupts or disturbs you, as it purifies your air. Its pink noise puts soothing vibes into your environment –ideal for better sleep.
Lifetime Guarantee
If anything goes wrong with your Alen air purifier, our in-house experts will help you solve the problem if they can't, we'll happily ship you a free replacement - fast!
Purpose Specific Filters
With three filter options to choose from, you can optimize your Alen for your specific environment. Choose from 3 different filters designed to address your specific needs - Pure, Fresh and Odor.
Clean air you can see
Medical-grade HEPA filters that remove 99.9% of dust, allergens and harmful pollutants down to 0.1 micron
Alen® Air Purifiers are designed to run 24/7, constantly monitoring your air quality. Using laser-sensor technology to auto-adjust fan speed when airborne particles are present, our LED color rings let you know when harmful particles are detected.
SMART SENSORS
Track PM 2.5, TVOC, eCO2, temperature, and humidity levels in your air. Set up notifications based on thresholds you set.
POWERFUL FILTRATION
Purify up to 2,800 sq ft in one hour, or 1,400 sq ft every 30 minutes.
DETAILED CONTROL
Change single or multiple settings across multiple devices through the Alen Air app. Create schedules for your purifiers that match your routines.
SMART RFID FILTERS
Keep track of remaining filter life, even when you swap filters.
AUTO LIGHT MODE
Dims panel lights automatically when the room is dark and brightens when the room lights up.
ONGOING FIRMWARE ENHANCEMENTS
Get updates through the Alen Air app.
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Whisper Quiet
Enjoy soothing pink noise for up to 25% better sleep.
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Know it’s Working
See real-time changes in air quality through LED colors
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Stay in control from your phone
Connect to WiFi to monitor air quality history and control remotely.
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Powerful coverage for your largest rooms
Open-concept spaces and living rooms up to 2,800 sq ft in one hour or 1,400 sq ft every thirty minutes
A filter for every concern
The 75i offers flexibility, you choose the filter
Not sure which filter is right for you?
Pure Filter
Compatible with 75i, 45i & FLEX models
Ideal for capturing allergens and mold spores
Medical-Grade Efficiency: Clinically proven to capture 99.9% of irritating allergens including pollen, dust, and mold spores.
Targeted Filtration: Engineered to trap fine particles that trigger allergy symptoms, helping you breathe with ease.
Designed for Comfort: Emphasizes a reduction in inflammation and symptom alleviation for a healthier indoor experience.
Fresh Filter
Compatible with 75i, 45i & FLEX models
Protection against harmful chemicals and smoke
Medical-Grade H13 HEPA Layer: Captures 99.9% of harmful particles, including VOCs and chemicals.
Enhanced Activated Carbon: With over 2.3 lbs. of activated carbon, it absorbs strong odors and smoke.
Optimized for Wildfire Smoke: Specially designed to tackle smoke-related pollutants and odors.
Odor Filter
Compatible with 75i, 45i & FLEX models
Combat stubborn odors & pet dander
Patented Odor-Eliminating Tech: Destroys odors not just on the surface, but at the molecular level.
Targets and absorbs stubborn pet odors, even urine and fecal odors.
Designed for pet lovers: Specifically formulated to target and neutralize pet, diaper, and stubborn household odors.
What our customers are saying
Filter by:
- Allergies
- Smoke
- Odor
- Pets
Specs
Air purifier
Coverage
Up to 2,800 sq ft in one hour or 1,400 sq ft every thirty minutes
Dimensions
H 27" (68.58 cm) x W 18.5" (46.99 cm) x D 11.5" (29.21 cm)
Energy Star
Energy Star
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
Noise Level
Lowest Speed 25 dBa | Highest Speed 51 dBa
Power Consumption
1.36 to 55 watts
Cleans all air in room every 30 minutes @ highest setting
Power Supply
120V, 60HZ (3 Prong Power Cord)
Cord Length
7ft (213cm)
Sensor
Automatic speed adjustment and coordinated to 5 color rings/speeds
Warranty
Forever Guarantee | with Product Registration & Active Air Filter Subscription
CFM (Cubic feet per metre)
Speed 1: 100 CFM| Speed 2: 185 CFM| Speed 3: 255 CFM| Speed 4: 300 CFM| Turbo: 375 CFM
Sound Type
Pink Noise | All speeds
Speed Settings
5
Weight
27 lbs (12.2 kg)
CADR (Clean air delivery rate)
CADR (Clean air delivery rate)
Clean air delivery rate (CADR) is a measurement that indicates how much air an air-filtration system can filter and deliver per minute. The higher the CADR, the more efficient the filtering process and the cleaner the air that it delivers. The CADR rating is measured in cubic feet per minute (CFM).375
Filters
Filter Cost
From $99 or $89.10 when you subscribe | Learn more
Filter Life Max
15 months | @ Recommended 24hr/day operation
Filtration Rate
Removes 99.9% of particles greater than 0.1 micron
White
Oak
Weathered Grey
Brushed Stainless
Graphite
Espresso
When your air is perfect for you. That’s UTOPIAIR.
Unsure which model and filter is right for you?
Take the quiz to determine what model is right for your room size and coverage needs, as well as which filter is right for your specific concerns.
Compare models
Not sure which model is right for you?Take the quiz
BreatheSmart 75i
Ideal for large living rooms and open-concept spaces
Coverage
1,400 - 2,800 sq. ft.
Compatible filter types
Pure, Fresh, and Odor
What’s Included?
- BreatheSmart 75i air purifier
- HEPA filter (options with carbon also available)
- White panel (designer panels available for purchase)
- Quick start guide
BreatheSmart 45i
Standard living rooms and large master bedrooms
Coverage
800 - 1,600 sq. ft.
Compatible filter types
Pure, Fresh, Odor, and VOC/Smoke
What’s Included?
- BreatheSmart 45i air purifier
- HEPA filter (options with carbon also available)
- White panel (designer panels available for purchase)
- Quick start guide
BreatheSmart 35i
Bedrooms, home office, nursery, and dorms
Coverage
Purifies up to 1,400 sq ft every hour or 700 sq ft every thirty minutes
Compatible filter types
Pure - best for allergens
Fresh - best for wildfire smoke & harmful chemicals
Odor - best for neutralizing odors
What’s Included?
- BreatheSmart 35i air purifier
- True HEPA Pure air filter
- Quick start guide
FAQs
What makes the Alen BreatheSmart 75i different from other air purifiers?
The Alen BreatheSmart 75i 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 75i purchase?
The BreatheSmart 75i package includes the air purifier unit, a pre-installed filter, and a user manual. Additional filters can be purchased separately.
How large of an area can the BreatheSmart 75i cover?
The BreatheSmart 75i is designed to purify spaces up to 2,800 square feet, making it ideal for large living rooms, open-concept spaces, and offices.
Does the Alen BreatheSmart 75i come with a warranty?
Yes, the 75i 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 75i compare to other brands?
The BreatheSmart 75i offers superior performance with advanced HEPA filtration, quieter operation, and the Forever Guarantee, which many competitors do not offer.
How effective is the 75i at improving sleep?
The BreatheSmart 75i is the official air purifier of SleepScore Labs, proven to improve sleep. Its incredibly quiet operation emits a soothing pink noise, which enhances lower frequency sounds, helping you wake up feeling more rested.
Still not sure? Ask our experts
Get more help on Alen.com
Have questions? Our Alen support team is just a click or call away.
Have questions? Our Alen support team is just a click or call away.
Give us a call 1-800-630-2396
