This air purifier is very impressive. Once I set it on automatic it food exactly as hoped. From initial analysis to constant monitoring and processing, it has already been making a huge difference for us. We are allergic to just about everything, and this unit has ended the itchy eyes, issues with breathing and so much more. This is a life changer!!!

I bought this about 2 months ago it is great. the advanced pure air shield air purifier is very quiet, cleans the air very good I love having in the living room I like it so much Im going to get another one for the rest of the hose. I have noticed I don't have to dust as often so I love that part yay keep it up

Bought about a month ago with no issues. I'm no sneezing as much and the pollen is very high at the present moment. The dust in the house ( open concept living area) has been been greatly reduced.

I have 3 Pure Air units in my house, they work very well with a smoker in the house. I would have purchased another Ultra but filters are hard to find. Both types are easy to clean.

After installing, my room feels like some high tech controlled lab where only fresh dust-free air is allowed to circulate. Rounding out this great buy is the stylish looks plus simplicity of setup and use.

Larger than I originally thought, but still a clean design. Very quiet on all but the highest setting. Hoping that it adds an another layer of protection in my wife's classroom

Only had it for one month, so I will follow up if any problems arise. It’s very quiet, I definitely noticed less sneezing and that “plugged up nose” feeling. I ordered 3 extra filters since someone commented on how often you need to change them. They’re a little speedy. I just want to be sure I get at least 3 years out of this air filter. So far, I highly recommend this product.

Love this unit. It's super sensitive to changes in the air. It changes speed when it senses odors in the air and is super quiet. Love it!!

So many features. So many ways to improve the air quality in any room I choose. I have used the "auto" setting and I have seen first hand, how the unit ramps up it's air cleaning when the unit's sensor picks up on changes in the air quality

I purchased two purifiers. One for home bedroom and one for the office. Overall, I am very pleased. I suffer seasonal allergies and live in the lush beautiful south. The air purifier works well. It has an auto setting which automatically adjust the fan speed when it detects a noxious odor. For example, when I use hair spray in the master bathroom it automatically increases the speed. The purifier is located in the master bedroom. Both rooms are fairly large with multiple walls separating the two rooms. After it removes the fumes it decreases speed. It seems to be very sensitive. You will notice the sound when the fan speed increases. Otherwise, the operational sound is not a problem. The appearance of the purifier is not aesthetically pleasing. It has a quite large foot print and a blue light burns while it operates. It is very bright. I would prefer to have "blades" to clean which, found on many ionic purifiers, than replacing a dirty filter. I would say it is very effective but not very eye pleasing. Appearance, not performance, is why I rated it a 4. Personal preference...