Customer Ratings & Reviews

Plugged it in and it said my air was 95% clean already so not sure it it was actually working or not. After running a couple of hours it made a loud noise.

I just got this purifier today. It has been plugged in and running for about 6 continuous hours. It has not gotten above 70% in 6 hours. Our house is about a total of 1400 square feet so maybe that's why its only gotten to 70. Who knows. I guess I'll keep running it and see how it goes.

It was great for a few months. Now it seems to reset to air quality of 0 every morning, then takes literally the whole day to get back to 100, then repeat everyday. Nothing in our home has changed…. For $300 it should last longer than a few months…

The unit never changes from 100% we have 2 large dogs

Haven't had quite long enough to notice big difference

Doesn't really change the odor in the air and a little noisey.

Was faulty display. Showed air quality hundred percent all the time an returned it

I purchased this almost a year ago and have never had it work 100% correctly. For months it has said that air quality is 0% regardless of following the troubleshooting methods of cleaning the back sensor and the mesh dust screens, even vacuuming the filter. Pretty disappointed in this product.

I have more dog here in my house than ever I returned this once already, and still having problems with them

The NeverChange Air Purifier is larger than any purifier we've owned and I was skeptical because of that, but now knowing we won't have to change the main HEPA filter for 5 years is totally worth it. To accomplish that there are mesh dust filters on each side of the unit that easily slide in and out. They can simply be cleaned with a vacuum attachment or cloth. It hasn't been long enough for us to need to clean them yet, but watching the youtube video provided by Shark, it looks very simple. I would highly recommend scanning the QR code on the front of the unit to get to the various tutorials and instruction booklet. "How to Maintain your Shark NeverChange Air Purifier" is the link to the mesh filter maintenance video. So far our purifier has been running quietly on its own showing 100% on the air quality so we haven't needed to do much with it. We haven't had an event that's needed to ramp up the fan speed either, but manually testing the max does get quite loud, but I don't anticipate the unit ever having to run very long at that speed. So overall we are quite pleased and as I mentioned, the big draw to Shark and this unit is the savings from not needing air filters every 6 months, etc. We are very happy and will look at getting another unit for the rest of our home.

Seems to work a few days, others I don’t notice a difference in vanishing the smells.

This is a true honest opinion of actual buyer. Don't believe other fake reviews. My daughter has allergies and this didn't do a good job at removing smells or pet dander at all. I've used for 4 days now. My old vollara air pro works way better. Guess I'll be getting another one

The Shark - NeverChange Air Purifier MAX is a great little air purifier. Setting the unit up was pretty simple. The fact that I don't need to change a filter every few months is a huge bonus. The unit itself is very quiet and hasn't been a distraction for us when watching TV or surfing the web in the comfort of our bedroom. Our air quality where we live is actually pretty good, however, with the way wildfires have been this year I can feel a little bit of relief that this unit is able to help mitigate that. That being said, I think this unit is best for people that live in smaller houses/apartments near cities. Being out in the country, I don't feel like I'm seeing the full benefits of this unit. One thing that is really helpful is that this helps with my allergies quite a bit. There are many air purifiers on the market, I see this one as a great buy for people that want to sleep better that suffer from allergies. The cost of the unit, the square footage it covers make this a pretty good buy for anyone that wants to improve the quality of their air.

Have had it for less then 3 weeks and already only reads 0% and runs non stop . Did all the trouble shooting and still reads 0%. Will randomly go to 100% for a couple minutes them go right back to 0%. Not happy and already past the return window . Guess best but only does 3 weeks now

Didn't get the job done. Did nothing to improve air quality and relieve allergy symptoms.

It’s too early to tell if this is helping or not, it sure has some weird run cycles.

I bought two Shark air purifiers to reduce dust in my house. I waited five months to review them because I wanted to give them a fair shot. Unfortunately, they haven't done much to lower the amount of dust in my home. I wish I could return them.

Noisy when the purifier runs. Would have been better if it is calmer operation

Shark did a lot of things right and a few things wrong with its new Never Change Air Purifier Max. The biggest thing they did right was build the Max around a long-life HEPA filter that, despite the product's name, DOES have to be changed -- but only once every five years or so. That is a lot less often than most other air purifiers and should save you a bunch of money because the filters are usually very expensive. The big. round main filter, which captures the really small stuff in the air, is aided by two additional first-stage DebrisDefense filters that fit into intakes that stick out on each side of the barrel shaped appliance. One of the washable sheet type filters used here removes big debris like dust and pet hair while a second carbon filter sheet helps eliminate odors. All filters are easy to remove and replace (or clean in the case of the first stage filters) which makes maintenance a breeze. And fairly economical compared to other brands. Overall operation easy too, with a top-mounted backlit control panel (a much appreciated improvement) with simple touch controls. In most cases, they are not really needed though since the default AUTO mode keeps constant tabs on air quality and adjusts fan speeds to deal with real-time conditions. Most of the time, the Max runs in a whisper-quiet low mode but the internal fan can crank up to much noisier hurricane force when air quality declines -- which can happen when you are cooking certain foods or something else messes up the air quality. A color-coded LED circular display on the front changes colors to let you know when air quality is bad. Blue is good while yellow, orange and red denote high particulates. There is also a number display in the center of the circle display that denotes air quality, with 100 being perfect and anything less than that needing work. The color circle also flashes to remind you when it is time to clean the side filters. A built- in sensor, dubbed CleanSense IQ, does a remarkably good job of determining air quality and automatically adjusting fan speed to deal with those conditions. Even better it will power down into a barely running eco mode after five minutes of 100 percent air quality, saving electricity and improving filter life. The control panel gives you the ability to dim or turn off the display, as well as manually adjust fan speeds, run the Max on a timer ( another welcome addition from some earlier models) , or change what information appears in the display. Another big plus with the Max is that it claims to have enough power to clean the air in up to 1400 square feet of space. That's an entire house for some folks and a lot more capcity than you usually see in an air purifier of this size. As for the overall design, it looks something like a high-tech garbage can. Constucted of sturdy white plastic, it is fairly light so can easily be moved around as needed using a built in hand-hold cutout in the back. My only reservation is with a new feature that is supposed to improve odor control. This consists of a small round "odor neutralizer technology cartridge" that screws into the top of the Max. It promises to produce a "fresher smelling home." This probably appeals to those who like chemical air fresheners but I am not one of them. Even on the lowest setting, I found the smell a bit overpowering and distracting at times. And I was alarmed by the long list of scary warnings associated with handling the cartridge. The good new is you can just not install this thing and be happy with plain old clean air. The Max really doesn't care. And that is one less consumable you have to replace. Despite my misgivings on that front, I see the Shark Never Change Air Purifier Max as a strong contender in the category, thanks mostly to its chart-topping 5-year filter and impressive ability to clean the air in an entire house.

I wanted to love it. It looks like a little droid. But alas, there seems to be a design flaw. When using auto, it doesn’t seem there’s enough air draw to determine if the air is “contaminated.” I have another shark that works perfectly. I returned this and decided to get the Levoit Core 600s