So far it has been great. The wifi setup was difficult due to the devise timing out before it could complete, so that took a while. Other than that I can't complain. I almost want to get another with the FRESH filter. We'll see after a year or so!
Our 75i air filter has been very effective and easy to use. I love the simple and intuitive controls, rather than an unnecessary app that many competitors use.
We noticed significant benefit in the first couple days, with continued improvement for the first month. You can tell the Auto function works well as it quickly responds to any new pollutants in the air.
It is large but looks nice with a designer panel. My one-time interaction with customer support with a question was answered very promptly.
This purifier is amazing....it senses even slight changes in the air in our home, e.g. cooking odors, etc. I like that the color changes when the purifier is alerted to changes in the air....you can really see it working. We will probably buy one for our bedroom next!
Packaging is incredibly well done, similar to receiving an iPhone or laptop from Apple. The easiest unpacking and set up of an air purifier, at least of the three different brands I have purchased. The purifier is extraordinarily quiet, unless it is on the highest speed, and even then, it is quieter than two other brands I own. I would definitely recommend this air purifier.
3 years ago we bought a 45i to filter air in our 2 bedroom retirement apartment on the 26th floor. It was fine. Did the job. Last month we bought a house that is three times the size. The 45i was not keeping up. So we got a 51i to add capacity. It worked. The added capacity really did the trick. Both now run blue almost all of the time. Anyway; the 51i is quiet, it must be cleaning a lot of air in our very large space to stay blue, is easy to operate (all you do is set it and leave it), and it looks good (which means my wife approves), Ordering was easy, and it really arrived quickly. No supply chain problem with this baby, and the only maintenance is a filter vacuum cleaning every few weeks. Oh by the way, allergies are a thing of the past.
Got it for about 2 weeks and so far so good. It really detects particles in air since it will turn orange, filtering the air, while I’m cooking in the kitchen. Side wise is little big but overall it is a good product.
The 2 machines we bought are 5 stars, one machine packaging was torn up pretty bad and slightly damaged machine cosmetically still works fine. We bought machines to replace a IQair machine for my wife COPD.