Beautifully simple design & easy to use. Since having the Alen purifier in my home, I've significantly reduced the amount of times I use my nasal spray and decongestant. Prior to working from home, I never knew there were so many indoor allergens - from daily dust to all the plants I house in the apt. Love the auto feature because it takes the guesswork out of having to program the unit at different times & for different needs. Strongly recommend and have already done so for my parents, who are also happy Alen customers!
Works as advertised. My wife and daughter have bad allergies and noticed a difference in the air. The sensor really works and monitors the air and adjusts automatically. I will definitely buy more for other areas of the house.
Easy to set up and easy to know if it's working by it's light system. Very quiet, very effective. I use it in an art studio with lots of toxic fumes and bought the version with the Silver filter. It works great. Highly recommended (and I shopped a lot of air purifiers!)