Despite the packaging being damaged and the power cord not being in the box, once I received the cord replacement (a week later) the unit was set up quickly without issue. It has been running 24/7 since and I believe there is better air quality in the house. I note less dust on surfaces in the nearby rooms and do not see dust particles reflected in the air when sunshine is streaming into the living room. I intend to purchase a smaller unit for my bedroom since I have both cats and dogs with mild asthma. I have noticed I am less congested in the mornings when I wake up and I attribute this to the air purifier. It is very expensive, but, so far, seems to be performing much better than any such appliance I have ever owned. My one concern and reason for 4 stars instead of 5 is the cost of the replacement filters. I will see how often I really have to buy them. If once a year, that is great, but if the filter doesn't last that long, it is expensive in my opinion.
We love our 75i !! Have 2 Australian Shepard dogs (1 year old). This unit helps with dander and dust ! We have it in the same room as their crates. Air is crisper and no more dog odor !!
Have had the 75i for a few weeks now. The unit is whisper quiet, attractive, and most importantly, effective. The 75i responds to changes in air quality such as when we use the gas cooktop, oven, etc. Very happy with this purchase.
We are so happy with our Alen BreatheSmart 75i !! We have definitely notice a difference in the air quality in our home - we highly recommend this air purifier.
I purchased the 45i and 75 for my house and it has made a massive difference. Living with 3 people, 4 pets, and the bipolar weather of Central Oklahoma I was a little skeptical seeing as though I have a whole home system through my HVAC but after hooking these up and giving them a full week to run I can honestly say that they have made a massive difference. I plan to purchase another 45 and 75 to completely cover the house.