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Alen BreatheSmart 45i with Heavy Smoke Filter

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Validated by SleepScore Labs to provide a better night's rest, the Alen BreatheSmart 45i packs big power into a small footprint. As functional as it is beautiful, 45i thinks about air quality so you don't have to. Equipped with an extra-large carbon filter enhanced with an antimicrobial treatment, the Heavy Smoke filter keeps your air healthy and fresh through tough environmental conditions.

  • Features Alen's exclusive antimicrobial Heavy Smoke filter, with 2.38 lbs of carbon to remove smoke and chemical fumes.
  • Cleans 800 sqft every 30 minutes. Emits pink noise for a better night's sleep.
  • Auto Mode adjusts fan speed to achieve the best air quality while the air quality indicator takes out the guesswork.
  • True HEPA filtration removes 99.97% of airborne particles as small as 0.3 microns (about 56x smaller than a human hair)
  • 7 diverse color options, and even more on our Designer Panels Page
  • Guaranteed Forever, for lifetime peace of mind.
  • Features and Benefits


    A filter for the toughest environmental challenges.

    Alen offers a specialized 45i True HEPA air filter to address tough environmental concerns such as wildfire smoke and chemical fumes, all while preventing the growth of mold and bacteria. The Heavy Smoke filter removes dust and allergens, but is uniquely designed to remove large amounts of smoke particles, so you can live your best no matter your air quality situation. 

    Personalize any indoor environment.

    The Alen BreatheSmart 45i can be customized to meet the air purifying needs of any average-size room, with True HEPA filter options that remove dust and allergens, and designer panels that come in a range of colors and textures. So if your decor changes, you can quickly change designer panels to complement your home's new look.   Perfect for small to medium-sized rooms, 45i offers 800 SqFt of coverage on its highest speed.

    Thoughtful Design

    From offices and boardrooms to living rooms and bedrooms, the slim profile of the Alen BreatheSmart 45i and its choice of designer panels means you can personalize it to fit your style, and take control of your indoor air environment.

    Outstanding Performance, Attractive Price

    The sleek and elegant Alen 45i is simple to use, featuring intuitive controls and easy filter changes that will give you peace of mind.



    • LED Air Quality Indicator
    • Filter life indicator
    • Timer
    • Power/Sleep Mode
    • Auto Mode
    • 4-speed fan
    • Lock
    • Handle for easy moving


    Coverage Area (Max Speed) 800 Sq Ft
    Filtration rate Removes 99% of particles greater than 0.3 microns
    Air Flow (Max Speed) 190 CFM
    CADR 245
    Noise level (Max Speed) 55 dB
    Power Consumption (Max Speed) 50 watts
    Power Supply 120 V
    Filter Life 9-12 months
    Size 25" x 15" x 8.5"
    Weight 15 lbs

    Package Contents

    Forever Guarantee

    We come to work every day for one reason - to make high quality air purifiers and filters so you can breathe better, feel better and live better. That’s why we created the air purifier industry's first and only Forever Guarantee. We’re in this for life - your life. If you've used your Alen air purifier for personal purposes in the United States and it quits operating under normal conditions, we guarantee to provide you the same or comparable refurbished purifier with free shipping. Click here to learn more about our Forever Guarantee.

    However, the warranty is only valid in the US and Mexico. Taking this unit to any other country and connecting it to a voltage converter or plug adapter will void the warranty. Please contact us if you have any questions or if you are looking for a product to use outside of the US or Mexico.

    Customer Reviews

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