One side of the purifier puts out fantastic air other side doesn't put out hardly any. Also malfunctions quite a lot I have the large one and a small one and they both do the same, which I can't understand. It's just me in the house and it's just frustrating. My friend told me to get the air doctor and I should've listened. She doesn't have any problems with hers however, replacing her filters are a little expensive . But hindsight, it might've been worth it due to the frustration I have with both of these I have one on YouTube to help. Try to figure out what to do with these and I have to vacuum The filters clean inside and that still doesn't work 90% of the time

[This review was collected as part of a promotion.] I have 3 air purifiers in my house and this is the best of them. I keep this in the living room near the kitchen and it works silently. Plus the fragrance diffuser smells good. Some features that I like, it runs on eco mode, fragrance diffuser, silent running and indicators for air quality on the front. This air purifier is very light so easy to move around if you need it. Amazing product. This is my second Shark Product and yet to be disappointed,

[This review was collected as part of a promotion.] Very nice air purifier. Simple to use and operates on it's own. The deodorizer is a nice added bonus. The controls are easy to understand and filters are easy to clean. This air purifier works 24/7 and does a good job.

[This review was collected as part of a promotion.] My youngest son suffers from seasonal allergies and it was becoming more and more apparent, due to climate changes. Our pediatrician suggested that we use a Hepa filter and so we began testing out the Shark Never Change Air Purifier Max. There are multiple impressive findings that have won us over. First of all the Hepa filter is designed to last up to 5 years without replacing. Instead one has to easily clean (not replace) the two side filter screens that protect the filter in order to remove any airborne dust, hair or lint that may become trapped. Secondly it covers a wide area up to 1400 square feet, which means my open floor plan is sufficiently covered without having to move the unit around nor having to run multiple units on the first floor. Another great feature is that this machine neutralizes the air, removing offensive smells, like fish frying or pet odors. I find that it works most quietly on the two lowest settings and still gets the job done. Setting it on Max can be quite noisy and may be annoying if run for an extended period of time. Putting it on the Auto-setting, will allow the machine to go to work all on its own, purifying the air. We really like the contemporary design and feel it would compliment any decor. Shark has made a superior machine that can be perfect for anyone, especially those with allergies or respiratory issues. Would recommend!

I do not notice th difference in the air quality

Good filter but false advertising. Needed replacement filter within 1st year. 90$. I'm not happy.

Very good at sensing odors!

I purchase this about a month ago, really can't tell the difference with it or without it

Wife likes it I really can't tell any difference .

I LOVE this shark! It has so many cool features! I am ordering another one!