Highlights
Pink Noise Sleep Score™ — Backed by SleepScore Labs to aid sleep
AI-powered airID™ — Identifies pollen, smoke & dander in real time
Air Quality Indicator — Color-changing ring shows air quality at a glance
Forever Guarantee™ — Lifetime warranty when enrolled in a filter subscription
Alen Air App™ — Scheduling, real-time tracking of PM2.5, TVOC & eCO2
Designer Front Panels — Customizable covers to match your décor

Imagine walking into your living room and breathing air so pure it feels like a mountain breeze—without stepping outside. That’s exactly the kind of experience Alen aims to deliver. With a strong heritage in medical-grade filtration and a portfolio of thoughtfully engineered home models, Alen offers solutions that prioritize both efficiency and user well-being. As a longtime expert tester in the air-purifier field, I’ll walk you through the science, the strengths, and the few areas where Alen could sharpen its edge.
Features
9.2 /10
Alen delivers reliable performance for Features in Air Purifiers.
Performance
8.0 /10
Alen delivers reliable performance for Performance in Air Purifiers.
Design
8.9 /10
Alen delivers reliable performance for Design in Air Purifiers.
Conclusion
Alen delivers what it promises: quiet, effective air cleaning across every room size, with build quality and design that blend into your home. But the gaps are real: premium filter costs, inconsistent smart features, and weaker value in the smaller models. The 75i is the standout for large spaces, the 45i is the well-rounded choice, and the FLEX gives strong performance without frills. The rest of the lineup works, but doesn’t always justify the premium.
