Hero image 0 of Alen BreatheSmart 45i 800 SqFt Air Purifier with VOC/Smoke HEPA Filter for Allergens, Dust & Mold + VOCs and Smoke - White, 0 of 8
Alen BreatheSmart 45i 800 SqFt Air Purifier with VOC/Smoke HEPA Filter for Allergens, Dust & Mold + VOCs and Smoke - White
Alen BreatheSmart 45i 800 SqFt Air Purifier with VOC/Smoke HEPA Filter for Allergens, Dust & Mold + VOCs and Smoke - WhiteAlen BreatheSmart 45i 800 SqFt Air Purifier with VOC Smoke HEPA Filter for Allergens Dust Mold VOCs and Smoke WhiteAlen BreatheSmart 45i 800 SqFt Air Purifier with VOC Smoke HEPA Filter for Allergens Dust Mold VOCs and Smoke Brushed StainlessAlen BreatheSmart 45i 800 SqFt Air Purifier with VOC Smoke HEPA Filter for Allergens Dust Mold VOCs and Smoke Weathered GrayAlen BreatheSmart 45i 800 SqFt Air Purifier with VOC Smoke HEPA Filter for Allergens Dust Mold VOCs and Smoke Espresso
Actual Color:White-Out of stock
Key item features
- Advanced Filtration: Features a HEPA filter with over 2 lbs of activated carbon, capturing 99.9% of dust, allergens, and viruses down to 0.1 micron, while trapping smoke and VOCs.
- Optimal Coverage: Cleans 800 SqFt every 30 minutes, making it suitable for various rooms from bedrooms to living rooms and home offices.
- Smart Monitoring: SmartSensor Technology displays air quality status with 5 LED colors and auto-adjusts fan speed based on detected airborne particles.
- Quiet Operation: Engineered for maximum airflow with minimal sound output, comparable to a gentle rainfall on its highest setting.
- Energy Efficient: Operates at 50 Watts on the highest setting, designed for continuous 24/7 use.
- Sleep Enhancement: Creates a soothing, whisper-quiet pink noise and is validated to improve sleep by reducing allergy symptoms.
Generated by AI
Specs
- Filter typeHEPA
- Coverage area800
- Clean air delivery rate400 CFM
- Microparticle performance rating99.9
- FeaturesFilter Change Indicator
- Decibel rating23 dB
Current price is USDNow $249.00
You save $236.64
was $485.64$485.64
You save$236.64
Price when purchased online
Out of stock
How do you want your item?
Out of stock
About this item
Product details
Alen BreatheSmart 45i air purifier with medical grade HEPA air filter offers incredible performance in a sleek and space-saving profile, cleaning 800 SqFt of air every 30 minutes with whisper-quiet sound. The ultimate purifier, BreatheSmart 45i is validated by SleepScore Labs and proven to improve sleep by reducing allergy symptoms. This filter's HEPA layer captures 99.9% of airborne particles down to 0.1 micron, while the carbon traps smoke, cooking smells, fumes, and Volatile Organic Compounds (VOC's). Equipped with advanced sensor technology; BreatheSmart 45i displays air quality status in easy-to-read colors while Auto mode adjusts purifying power 24/7 for worry-free breathing. Alen is passionate about clean air and has been in the air purifier business for over 15 years. Enjoy Pure Air for Life with an exclusive Forever Guarantee and Breathe Better, Feel Better, Live Better with Alen.
- Why choose Alen? We're top rated and we stand by you for life (Alen has the only Forever Guarantee in the business).
- FL40-H Smoke Air Filter: HEPA filter with over 2 lbs of activated carbon, HEPA captures 99.9% of dust, allergens, aerosolized viruses, and other fine particulates down to 0.1 micron while the carbon layer traps Smoke vapors, Volatile Organic Compounds (VOCs) and other harmful gaseous contaminants.
- Room to Breathe: Ideal for most rooms in the house from bedrooms to living rooms or even home offices, clean 800 SqFt every 30 min.
- SmartSensor Technology: Displays air quality status in 5 LED colors, so you never need to wonder if it's working. Designed to run 24/7, constantly monitoring air quality. Using laser-sensor technology to auto-adjust fan speed when airborne particles are detected, our LED color rings let you know when harmful particles get stirred up.
- Quiet and Powerful: Engineered with care for maximum airflow with minimum sound output - one that equates to a gentle rainfall on the highest setting.
- Energy Efficient: 50 Watts on the highest setting, so you can set it and forget it – let BreatheSmart 45i do the cleaning for you.
- Sleep Better: BreatheSmart 45i creates a soothing, whisper-quiet pink noise.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. Â
Specifications
Filter type
HEPA
Coverage area
800
Clean air delivery rate
400 CFM
Contaminants removed
Dust, Mold, Pet Dander, Odor, Allergens, Smoke, Viruses, Volatile Organic Compounds (VOCs)
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Similar items you might like
Based on what customers bought
KLOUDIC HEPA Air Purifier for Large Room up to 1900 Sq.ft, Removes 99.97% Pet Dander & Odor, with Air Quality Sensor & Washable Filters, Smart Air Purifier for Home, Ideal for Bedroom Living Room Off $99.99 Was $199.89
SponsoredNow$9999current price Now $99.99, Was $199.89$199.89You save $99.90You save$99.90KLOUDIC HEPA Air Purifier for Large Room up to 1900 Sq.ft, Removes 99.97% Pet Dander & Odor, with Air Quality Sensor & Washable Filters, Smart Air Purifier for Home, Ideal for Bedroom Living Room Off
4864.4 out of 5 Stars. 486 reviewsSave with
Shipping, arrives in 2 daysAir Purifiers for Home Large Room Up to 2600 Ft², HEPA Air Purifier with Washable Filter,20dB Sleep Mode Air Cleaner for Pet Hair Odors Smoke Dust $109.99 Was $199.98
SponsoredNow$10999current price Now $109.99, Was $199.98$199.98You save $89.99You save$89.99Air Purifiers for Home Large Room Up to 2600 Ft², HEPA Air Purifier with Washable Filter,20dB Sleep Mode Air Cleaner for Pet Hair Odors Smoke Dust
33.7 out of 5 Stars. 3 reviewsSave withShipping, arrives in 3+ daysBest seller RENPHO Air Purifier for Large Room up to 3000 Sq.ft/2h, HEPA Air Purifier with Double Washable Filter and Air Quality Sensor, Smart Air Cleaner for Allergies and Asthma, Pet Hair, Dust, Pollen, Smoke $119.99
Best seller
$11999current price $119.99RENPHO Air Purifier for Large Room up to 3000 Sq.ft/2h, HEPA Air Purifier with Double Washable Filter and Air Quality Sensor, Smart Air Cleaner for Allergies and Asthma, Pet Hair, Dust, Pollen, Smoke
2694.5 out of 5 Stars. 269 reviewsIn 25+ people's carts PuroAir Lite HEPA Air Purifiers for Home Pets - Covers 500 Sq ft $69.00 Was $87.99 $69.00/count
In 25+ people's carts
$6900current price $69.00, Was $87.99$87.99$69.00/countPuroAir Lite HEPA Air Purifiers for Home Pets - Covers 500 Sq ft
2394.8 out of 5 Stars. 239 reviewsBest seller Air Purifier for Home Large Room Up to 1123 ft², H13 HEPA Air Purifier for Home Pets Allergies, Air Quality Monitor, Washable Pre-Filter, Auto & Quiet Sleep Mode for Smoke, Dust, Odor & Pollen $69.99 Was $115.99
Best seller
$6999current price $69.99, Was $115.99$115.99Air Purifier for Home Large Room Up to 1123 ft², H13 HEPA Air Purifier for Home Pets Allergies, Air Quality Monitor, Washable Pre-Filter, Auto & Quiet Sleep Mode for Smoke, Dust, Odor & Pollen
384.7 out of 5 Stars. 38 reviewsAlen BreatheSmart 35i with Pure Filter delivers powerful air purification for small to medium spaces, combining advanced features with a compact, affordable design. $289.00
3 optionsAvailable in additional 3 options$28900current price $289.00Alen BreatheSmart 35i with Pure Filter delivers powerful air purification for small to medium spaces, combining advanced features with a compact, affordable design.
84.5 out of 5 Stars. 8 reviewsAIRROMI Air Purifier for Home Bedroom Covers 990 Ft² - Hepa 3-in-1 Filter, with Aromatherapy, Night Light & Timer, Remove Smoke, Pet Dander, Odor, Dust,A2001 White $49.99
Sponsored$4999current price $49.99AIRROMI Air Purifier for Home Bedroom Covers 990 Ft² - Hepa 3-in-1 Filter, with Aromatherapy, Night Light & Timer, Remove Smoke, Pet Dander, Odor, Dust,A2001 White
Save withShipping, arrives in 3+ daysJafanda Air Purifier for Home Bedroom, 1190 Sq.ft Coverage, True HEPA 13 Filter, Quiet, Removes Pollen, Allergens, Smoke, Odors $79.99
Sponsored$7999current price $79.99Jafanda Air Purifier for Home Bedroom, 1190 Sq.ft Coverage, True HEPA 13 Filter, Quiet, Removes Pollen, Allergens, Smoke, Odors
234.7 out of 5 Stars. 23 reviewsSave withShipping, arrives in 3+ daysHoneywell Air Purifier, HPA304, 2250 sq ft, HEPA Filter, Allergen, Smoke, Pollen, Dust Reducer $219.99
$21999current price $219.99Honeywell Air Purifier, HPA304, 2250 sq ft, HEPA Filter, Allergen, Smoke, Pollen, Dust Reducer
914.5 out of 5 Stars. 91 reviewsBest seller PRASKY Air Purifier for Home 1076 Sq Ft Coverage, True HEPA Filter for Pets, Smoke & Allergies | Quiet for Bedroom/Living Room (White) $39.99 Was $69.98
Best seller
3 optionsAvailable in additional 3 options$3999current price $39.99, Was $69.98$69.98PRASKY Air Purifier for Home 1076 Sq Ft Coverage, True HEPA Filter for Pets, Smoke & Allergies | Quiet for Bedroom/Living Room (White)
994.3 out of 5 Stars. 99 reviewsNUTROMO WiFi Smart Air Purifier for Home Large Rooms up to 3000 Sq.Ft., H14 True HEPA, 2 Washable Filters, PM2.5 Display, Alexa & Google Compatible, Removes Allergies, Smoke, Dust & Pet Hair $80.99 Was $179.98
2 optionsAvailable in additional 2 options$8099current price $80.99, Was $179.98$179.98NUTROMO WiFi Smart Air Purifier for Home Large Rooms up to 3000 Sq.Ft., H14 True HEPA, 2 Washable Filters, PM2.5 Display, Alexa & Google Compatible, Removes Allergies, Smoke, Dust & Pet Hair
3324.6 out of 5 Stars. 332 reviewsALROCKET Air Purifier,Hepa Air Purifier Filter for Bedroom,Pet Dander,Odors,Air Cleaner for 300 Sq.ft,Black $35.99 Was $69.99 $35.99/ca
$3599current price $35.99, Was $69.99$69.99$35.99/caALROCKET Air Purifier,Hepa Air Purifier Filter for Bedroom,Pet Dander,Odors,Air Cleaner for 300 Sq.ft,Black
1354.5 out of 5 Stars. 135 reviewsYaber Pets Air Purifier for Allergies and Asthma, 4200 Sq. ft True HEPA Filter for Home Large Room, Remove 99.9% Smoke Dust Odors $149.99 Was $319.98
SponsoredNow$14999current price Now $149.99, Was $319.98$319.98You save $169.99You save$169.99Yaber Pets Air Purifier for Allergies and Asthma, 4200 Sq. ft True HEPA Filter for Home Large Room, Remove 99.9% Smoke Dust Odors
274.5 out of 5 Stars. 27 reviewsShipping availableINSMART Air Purifiers for Bedroom, Quiet Air Purifier with HEPA Filter for Home,Smoke Dust Pet Dander, Odor, Hair for 500 SQ.ft $35.99
Sponsored$3599current price $35.99INSMART Air Purifiers for Bedroom, Quiet Air Purifier with HEPA Filter for Home,Smoke Dust Pet Dander, Odor, Hair for 500 SQ.ft
Save withShipping, arrives in 3+ daysRvchic HEPA Air Purifiers for Home & Industrial up to 10000ft² with Washable Filter, for Smoke, Pollen, Dander, Smell ,with Time Setting,Smart App & Wifi $149.99
$14999current price $149.99Rvchic HEPA Air Purifiers for Home & Industrial up to 10000ft² with Washable Filter, for Smoke, Pollen, Dander, Smell ,with Time Setting,Smart App & Wifi
25 out of 5 Stars. 2 reviewsBreezome Air Purifier for Home Bedroom, Hepa 3-in-1 Filter Cleaner with Aromatherapy Function for Better Sleep, Smoke, Pet Dander, Odor, Dust, Office, White $33.99
2 optionsAvailable in additional 2 options$3399current price $33.99Breezome Air Purifier for Home Bedroom, Hepa 3-in-1 Filter Cleaner with Aromatherapy Function for Better Sleep, Smoke, Pet Dander, Odor, Dust, Office, White
3954.4 out of 5 Stars. 395 reviewsClearance KISSAIR 2-in-1 Air Purifier and Humidifier Combo(CARB), H13 True HEPA Filter, Air Cleaners for Home/Office/Large Rooms(2676 Sq.ft), 99.97% Removal for Dust/Smoke/Pet Hair $149.99 Was $209.99
Clearance
$14999current price $149.99, Was $209.99$209.99KISSAIR 2-in-1 Air Purifier and Humidifier Combo(CARB), H13 True HEPA Filter, Air Cleaners for Home/Office/Large Rooms(2676 Sq.ft), 99.97% Removal for Dust/Smoke/Pet Hair
593.8 out of 5 Stars. 59 reviewsRONFATE Air purifiers, Home air purifier with H13 True HEPA filter, 3-speed compact air purifier, timer, white $41.99
$4199current price $41.99RONFATE Air purifiers, Home air purifier with H13 True HEPA filter, 3-speed compact air purifier, timer, white
Cobectal ZQA-8000A Air Purifiers for Home,H14 Large Air Purifier Suitable for Pet,White $66.99
Sponsored$6699current price $66.99Cobectal ZQA-8000A Air Purifiers for Home,H14 Large Air Purifier Suitable for Pet,White
Shipping, arrives in 3+ daysCobectal H14 HEPA Air Purifier ZQA-6000A with Activated Carbon Filter for Smoke, Dust, Pollen, and Dander $46.99 Was $59.99
SponsoredNow$4699current price Now $46.99, Was $59.99$59.99You save $13.00You save$13.00Cobectal H14 HEPA Air Purifier ZQA-6000A with Activated Carbon Filter for Smoke, Dust, Pollen, and Dander
73.9 out of 5 Stars. 7 reviewsShipping, arrives in 3+ days
Customer ratings & reviews
How item rating is calculated
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |
Showing 1-3 of 1,396 reviews
Feb 28, 2026
Tamia
5 out of 5 stars review
Peace of mind
I did a lot of research on air purifiers after having mold grow on a home ERMI test and landed on this brand. I couldn't be happier! They are stylish, quiet, and my allergy symptoms are so much better. I am super happy with all 4 units I bought and have great peace of mind that my air is clean especially during fire season.
Review from alencorp.com
Helpful?4BFMH41QZA8W2137525902
Feb 2, 2026
Anastasia
5 out of 5 stars review
The best!
The best air purifier on the market! My main goal was to get rid of cooking smells, and this filter does the job perfectly. I also tested it at my workplace, where mildew had occurred, so the space could be safely occupied before construction. Thanks to this air purifier, the air was clean - no smell and no symptoms from the mildew. I'll definitely be getting another one for my bedroom and workspace.
Review from alencorp.com
Helpful?4BFMH41QZA8W2137525902
Mar 27, 2026
Jason
5 out of 5 stars review
A breath of cleaner air!
I've gone through my share of air purifiers, but the Alen 45i is the first one I don't feel the need to hide behind a couch. It's sleek, matches my decor perfectly, and is incredibly quiet. I love the color-coded ring—it's a quick peace of mind to see that blue light and know the air is clean. Definitely worth the investment for the silence alone!
Review from alencorp.com
Helpful?4BFMH41QZA8W2137525902
