• Alen BreatheSmart 75i for Smoke
  • Alen BreatheSmart 75i for Smoke
  • Alen BreatheSmart 75i for Smoke
  • Alen BreatheSmart 75i for Smoke
  • Alen BreatheSmart 75i for Smoke
  • Alen BreatheSmart 75i for Smoke
  • Alen BreatheSmart 75i White Front Panel Removal
  • Alen BreatheSmart 75i Control Panel Top View
  • Alen BreatheSmart 75i Changing colors gif

Alen BreatheSmart 75i for Smoke


Product Description
Discover our most advanced and powerful True HEPA (H13) purifier for a healthier indoor environment. Alen’s medical-grade air filters capture up to 99.9% of harmful particles as small as 0.1 microns including mold and other harmful airborne particles. With an unmatched combination of room coverage and quietness, the 75i is ideal for large and open-concept spaces up to 1,300 SqFt, such as living rooms, apartments, offices, kitchens, master bedrooms, basements, and more.
    • Know it’s Working– 75i senses and rates particle levels in clear LED colors
    • Set and Forget– For 24/7 protection, Auto mode adjusts fan speed to keep air pure
    • Whisper Quiet- Tuned to produce soothing pink noise for 25% better sleep
    • Guaranteed Forever- Lifetime peace of mind from the industry’s best warranty
    • Tailored to You– True HEPA (H13) air filter options for unique concerns plus designer panels
    • Alen Air App- WiFi connectivity for remote control, air quality history, and more
Color White
Filter Subscription
One-time Purchase
Purifier includes filter rated for 12-15 months
Subscribe & Save 10%
Filter delivered ~
charged in the future 06-28-2023  ※

Ships Free on Monday

Fresh Air At Your Fingertips With The Alen Air App

App logo App logo

Don't Wonder If It's Working. Know It Is.

Alen’s advanced particle sensor technology always lets you know the status of the air quality around you with vivid LED color rings. And when harmful particles are detected, Auto-mode can automatically adjust purifying power to keep your air pure 24/7.

Cleans 1,300 SqFt Every 30 Minutes

Our most quiet and powerful air purifier is perfectly sized for large rooms or open plan living spaces. From the main room to the master bedroom, the BreatheSmart 75i has you covered.

Medical-Grade Protection

Long-lasting True HEPA (H13) air filters captures 99.9% of airborne contaminants down to 0.1 microns, including allergens and other harmful airborne particles. Alen’s medical-grade filtration is highly effective thanks to powerful airflow, ensuring pure air for your entire room.

Lifetime Peace of Mind

When you purchase an Alen air purifier, we proudly support it with the industry’s first and only Forever Guarantee*. If anything goes wrong, our in-house experts will help you solve the problem. If they can’t, we’ll happily ship you a free replacement—fast!

*air filter subscription required

The sound of better sleep.

The BreatheSmart 75i is incredibly quiet, and perfectly tuned to generate soothing pink noise - a frequency to help you sleep up to 25% better. At bedtime, display lighting dims or darkens completely with one touch for a perfect sleeping environment.


  • CFM
    Cubic Feet per Minute
    Speed 1: 150 CFM | Speed 2: 185 CFM | Speed 3: 225 CFM | Turbo: 290 CFM
  • CADR
    Clean Air Delivery Rate.
  • converted key: Cord length
    Cord length
    8ft (240cm)
  • converted key: Coverage
    Up to 1,100 sq. ft. (102.19 m2) | Cleans all air in room every 30 minutes @ highest setting
  • converted key: Dimensions
    H 18.5" (46.99 cm) x W 27" (68.58 cm) x D 11.5" (29.21 cm)
  • converted key: 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
  • converted key: Filter cost
    Filter cost
    $79 | Using "Pure" Air Filter
  • converted key: Filter life max
    Filter life max
    15 months | @ Recommended 24hr/day operation
  • converted key: Filtration rate
    Filtration rate
    Removes 99.97% of particles greater than 0.3 microns
  • converted key: Noise level
    Noise level
    Lowest Speed 42 dBa | Highest Speed 56 dBa
  • converted key: Ozone
    0 PPM when disengaged, less than 0.050 PPM with optional ionizer engaged
  • converted key: Power consumption
    Power consumption
    1.6 to 105 watts
  • converted key: Power supply
    Power supply
    120 AV, 60HZ (2 Prong Power Cord)
  • converted key: Sensor
    Automatic speed adjustment and coordinated to 3 color rings/ 4 speeds
  • converted key: Sound type
    Sound type
    Pink Noise | All speeds
  • converted key: Speed settings
    Speed settings
  • converted key: Warranty
    Lifetime | with Product Registration & Active Air Filter Subscription
  • converted key: Weight
    21 lbs (9.5 kg)

What's in the box

Frequently Asked Questions

  • My Room is Bigger than the Listed Coverage Area of the Unit I Want. Will it Still Do Some Good?

    The efficacy of an air purifier is typically measured in air exchanges per hour, or how many times within an hour the air in a room is completely replaced. A rate of six exchanges per hour or more is considered very good and would meet our standards. If your square footage exceeds the listed square footage for your air purifier, it can still clean your room, but the rate at which it can do so decreases. When the air exchanges per hour drop to a certain point, you won’t be receiving all of the benefits of allergen-free, breathable air. For optimal performance, a good rule of thumb is to find an air purifier that can cover more than the square footage of your room.

  • My apartment is 1500 square feet total, with a living room and a bedroom. Will one air purifier certified for 1500 square feet meet the needs of my entire apartment?

    Although your air purifier may still do some good in your entire apartment due to natural air circulation, air purifiers work best in the room they’re placed in. Air purifiers can’t work through walls or doorways, nor can they typically travel up stairs for loft-style apartments. It’s best, then, to get two smaller units and place one in each room. If you can only get one air purifier, place it in the room where you spend the most time, as this is the room that will see the most reliable results. We usually recommend the bedroom, since air quality and allergies can often drastically affect your quality of sleep. Your air purifier is portable and can be moved from room to room as needed, too.

  • What Is the Difference Between Your Pre-Configured Air Purifiers and Your Customizable Options?

    If you’ve already done your research and you know exactly which purifier and air filters are right for you, then our customizable options will allow you to configure the air purifier that meets your exact specifications. If you’re still a bit lost, our pre-configured options are designed to take the guesswork out of compositing your own air filter from scratch. Each pre-configured option is designed with a different set of needs in mind, from allergies to pet odor, and it contains the specific combination of air purifier and air filter to fit the job. These options are still customizable from an aesthetic standpoint - you can still choose your own panels - but they are not otherwise customizable.