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

4.9 stars out of 1401 reviews
(4.9)|
1,401 ratings

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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4.9 out of 5 stars
stars1,401 ratings1,399 reviews
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Showing 1-3 of 1,399 reviews

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?4BFMH41QZA8W2631021405
Sep 3, 2025
Aria Y.
5 out of 5 stars review

Love them!

I bought 2 of these earlier this year. Best purchase ever. I can breathe better now thanks to them. We live on a high-traffic road, so there is a lot of dust and pollen, and this air purifier literally filters most of the particles out automatically, and will indicate the air quality, then adjust on its own accordingly!!

Review from alencorp.com
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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
Helpful?4BFMH41QZA8W2631021405