Alen - BreatheSmart 75i 1300 SqFt Air Purifier with Pure HEPA Filter for Allergens, Dust & Mold - White

I don't know what to think. There was no literature that came with the machine. We set it up as the pictures on the cardboard package instructions indicated. It seems to work. How would we know? Inexplicably the light on top turns from green to orange at random times. No idea why, what it means, or what to do about it. And that light is too bright! Good thing its not in a bedroom! Its a bulky machine and I am not sure it's an improvement on our sleeker, lighter, easier to understand Dyson ( which also measures VOC's).

I've had my BreatheSmart 75i for over a year now. It is quiet, was easy to set up and is easy to clean, and it looks great. I use it in my basement, where I have been having to train personal training clients since my studio closed when the pandemic hit. It can tell when someone is frying bacon upstairs (the light changes from blue or green to orange, red or purple), and I can tell how bad the pollen is outside by what color the indicator changes when I open the windows. It is very reassuring to see the indicator light turn back to blue within a half hour of closing up when a client leaves. We have had some close calls this past year -- including when a couple I train tested positive 3 days after spending an hour with me working out -- but never had any COVID cases spread by people in my space. I chalk that up to masks, ventilation and my BreatheSmart!

I have an all wood house, knots pine walls, wood beams, wood burning Franklin stove heat and a a serious dust problem. If I didn't dust everyday my tables and floors would be covered. I purchased a BreathSmart 75i and ran it at level 3 for the first week and my dust problem vanished. It's now on level 1 and and maintaining perfect. I'm sleeping better, the house is staying cleaner and I'm completely satisfied.

We purchased (2) 45i and (1) 75i BreatheSmart units. We are very pleased with the quality of the units. In addition to our cleaner air, the units unobtrusively fit in our spaces. We love the controls and the way they automatically adjust the speed as required. The ability to turn the light off works well in the bedroom. We do not notice any disturbing noise from the units; if anything it's like white noise.

Peace of Mind! I'm so grateful to have a high quality air purifier in my home- I like the color codes that allow me to see if the air is clean or being cleaned, and it operates so softly that it doesn't disturb us while it's working. I feel much better in this era of Covid having an Alen purifier working to clean our home's air.