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Free Shipping To Lower 48 USA and No Sales Tax
Free Shipping To Lower 48 USA and No Sales Tax

Alen BreatheSmart 45i True HEPA Air Purifier - Graphite

Original price $468.00 - Original price $498.00
Original price
$468.00 - $498.00
Current price $468.00

Alen BreatheSmart 45i True HEPA Air Purifier


Compact yet mighty, the FIT50 stands less than two feet tall but packs a big air quality punch. It’s perfect for any space up to 900 SqFt including bedrooms, living rooms, offices, and even home gyms. Medical-grade filtration captures up to 99.99% of dust, allergens, fine pollutants, and other harmful airborne particles down to 0.1 microns. The FIT50’s oversized motor and filters deliver heavy-duty True HEPA (H13) purification, quietly and stylishly.

  • Know it’s Working– FIT50 senses and rates air quality in vivid 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) filter options for unique concerns plus designer panels
  • Pro-Grade Filtration– Most activated carbon in its class to fight toxic pollution

Coverage Area

Cleans 800 SqFt Every 30 Minutes

Alen’s best-selling air purifier features best in class quietness and is perfectly sized for medium-sized rooms like bedrooms and common spaces in apartments, condos, or lofts. It was the first air purifier to earn validation from SleepScore Labs for helping people achieve better rest.

Smart Sensor

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 adjusts purifying power to keep your air pure 24/7. 


Medical-Grade Protection

Long-lasting True HEPA (H13) filters captures 99.99% 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.

Guaranteed Forever

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!

Sleep Superbly

Discover Better Rest

Proven to improve sleep and reduce allergies, the BreatheSmart 45i helped people fall asleep faster, sleep sounder, and wake feeling more refreshed in a peer-reviewed study by SleepScore Labs. 45i is incredibly quiet and perfectly tuned to generate soothing pink noise—for up to 25% better rest. And at bedtime, display lighting dims or darkens with one touch.


  • CFM: Speed 1: 70 CFM | Speed 2: 135 CFM | Speed 3: 175 CFM | Speed 4: 215 CFM
  • CADR: 245
  • Cord Length: 7ft 8inches (233cm)
  • Coverage: Up to 800 sq. ft. (74.32 m2) | Cleans all air in room 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: Yes
  • Filter Cost: $69 | Using "Pure" Filter
  • Filter Life: 12 months | @ Recommended 24hr/day operation
  • Filtration Rate: Removes 99.99% 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 Filter Subscription
  • Weight: 15 lbs (6.8 kg)

What's In The Box

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

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