Alen BreatheSmart 45i 800 SqFt Air Purifier with VOC/Smoke HEPA Filter for Allergens, Dust & Mold + VOCs and Smoke - Espresso
Alen BreatheSmart 45i 800 SqFt Air Purifier with VOC/Smoke HEPA Filter for Allergens, Dust & Mold + VOCs and Smoke - Espresso
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Alen BreatheSmart 45i 800 SqFt Air Purifier with VOC/Smoke HEPA Filter for Allergens, Dust & Mold + VOCs and Smoke - Espresso

Alen BreatheSmart 45i 800 SqFt Air Purifier with VOC/Smoke HEPA Filter for Allergens, Dust & Mold + VOCs and Smoke - EspressoAlen BreatheSmart 45i 800 SqFt Air Purifier with VOC Smoke HEPA Filter for Allergens Dust Mold VOCs and Smoke EspressoAlen 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 WhiteAlen BreatheSmart 45i 800 SqFt Air Purifier with VOC Smoke HEPA Filter for Allergens Dust Mold VOCs and Smoke Weathered Gray
Actual Color:Espresso-Out of stock

Key item features

  • 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.
Current price is $498.00
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Customer ratings & reviews

4.9 out of 5 stars
stars1,404 ratings1,402 reviews
How item rating is calculated
  1. 5 stars90% (1,268)
  2. 4 stars7% (94)
  3. 3 stars2% (23)
  4. 2 stars1% (9)
  5. 1 star1% (10)

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Showing 1-3 of 1,402 reviews

Jan 17, 2026
Crystal
5 out of 5 stars review

Changer for My Living Room!

We use the Alen i45 in our living room and have been extremely happy with it. It runs quietly, looks great in the space, and noticeably improves air quality. The air feels cleaner and fresher, and it's made a real difference with dust and everyday odors. Setup was quick and easy, and it's been reliable ever since. Highly recommend for anyone wanting effective, low-maintenance air purification.

Review from alencorp.com
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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
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Nov 24, 2025
Scott
5 out of 5 stars review

Good

I purchased the Alen BreatheSmart 45 for our master bedroom and it has been excellent so far. It's powerful enough to handle the space, and within a short time we noticed the air quality feels much better—cleaner, fresher, and overall more comfortable. The unit runs quietly, even on higher settings, and the design blends in nicely with the room. Overall, I'm very happy with this purifier. It does exactly what it promises and has made a noticeable difference in our home's air quality. Highly recommend!

Review from alencorp.com
Helpful?4BFMH41QZA8W2268959928