[This review was collected as part of a promotion.] I cannot believe we went years without one of these - the results are INSTANT. We live in the midwest. Basically a RED ZONE for all things related to air quality, pollen, pollution, etc. We also have dog, birds, cats. During the mornings, we like to open our windows to let some fresh air in but we also get the pollen. For years, I've had to have an inhaler as it affected my lungs. We tried the Shark NeverChange Air Purifier and what a wonderful piece of modern technology. Out of the box, it was ready to plug in. You also get the odor neutralizer (we have a home gym and that room gets rather muggy and smelly). We love the look, design, functionality, and the SILENCE of this thing. Even when it's fully powered. There's no distractions or attention drawn. It's beautifully sitting there in the corner doing serious work. I love the digital reader that shows you what your air quality is. We noticed how low our score would get after making breakfast, cutting the grass, or even running the vacuum cleaner. Rather than that air simply circulating with your ceiling fans, this purifier is recycling the air and you can feel the magic. The first night we ran this and then walked downstairs, it felt like a brand new atmosphere we were in due to the amazing air quality and smell. I haven't used my inhaler as I have had no breathing issues after we received this. That 'home smell' every home has is no longer present as the odor neutralizer makes your home / air smell quite amazing. I no longer have to apologize to my guests as we walk past the gym room as it normally smells just like a gym bag but it smells pleasant! This is a MUST HAVE piece of technology for anyone. Homes need these and your quality of life will appreciate you for it. We cannot recommend this enough!

We LOVE it! We put this in our dining, living & kitchen area and selected the Auto function-this means it only runs when it senses fumes in the air. It turns on and runs until the fumes are eliminated! Last week, we made brussel sprouts and there was NO SMELL! Our original Hepa filftered cleaner ALWAYS left food smells.

[This review was collected as part of a promotion.] This works so great and really gets the air clean. So simple and easy to use. The design is so nice and it is super quiet. I like that you can see the quality of the current condition in a simple display. It is amazing how you can tell such a difference from the first day of use. Has so many nice features. Seems of high quality and great value. I am sure to get years of use from this. As always Shark never disappoints with their great products. Highly recommend.

[This review was collected as part of a promotion.] I wanted to give this thing a fair trial. Being in the kitchen it kept reading 0% clean air. It was near the litterbox so we gave it a pass. Our closet has had a smell since we installed shelves so I figured a small enclosed space would be an easy test to see how well it works. We have an air quality sensor that we compared it to. As you can see the ACTUAL particals per million are far less than the Shark purifier reads. It has been in there for a full month and the “air quality” has not changed. There also is still a woody smell from the shelves. So not only is the sensor absolute garbage, so is the purifier itself. DO NOT PURCHASE THIS. *I was given this product for free by Influenster in exchange for my honest review.

[This review was collected as part of a promotion.] This Shark NeverChange Air Purifier MAX works exceptionally well in my bedroom. It was nicely packaged and the instructions were very easy to follow and get the Air Purifier setup. I really like the look and design of this feature rich Air Purifier. It is a powerful unit that I can already see is working at cleaning and purifying the air in my bedroom. The purifier completely covers my entire bedroom and I already see a visible less amount of dirt on my furniture. It operates very quietly and doesn't interrupt my sleep or me watching TV. The Shark brand itself is a leader in many products and air purifiers is one. The rated square footage again is more than enough for my bedroom and itis noticeably cleaner air in the room. I like that I won't have to continue to buy expensive filters from time to time. The digital display is positioned very well on the front and it indicates it's cleaning and purifying which keeps me from guessing if it's working. I have only great things to mention about this Shark NeverChange Air Purifier MAX and I am going to purchase another one for my living room. The Anti Allergen and HEPA Technology ensures the air is being completely cleaned and is pure all due to the Shark NeverChange Air Purifier MAX. I give this Shark NeverChange™ Air Purifier MAX a 10 out of 10 for it's benefits, technology and thorough cleaning power of purifying the air.

I bought this device to clean up the air after I do my holiday cooking. I am also looking to significantly reduce the dust in my house. So far, it is performing exactly as advertised. The cooking odors do not linger, and I have a fresh and pleasant-smelling home. I am very happy with this purchase.

I purchased 2 of these to replace older Bissell air cleaners. Unfortunately I returned both. The reason I returned both was because of the automatic "Eco" setting. I am a firm believer that when an air purifier is constantly filtering air, even at a very low setting, that it will read the air pollution more accurately. These air purifiers have an automatic "Eco" setting that turns the fan off. You cannot set it to filter at the lowest setting without it turning off after 5 minutes or so. Definitely felt like our Bissell air purifiers cleaned the air more often then these brand new ones. So I returned them. Also, the design of the filter housing at the bottom of the unit is nice but not practical. You have to be VERY careful when repositioning or moving the unit because the filter housing at the bottom will unlock easily and when you lift the unit the filter comes out. Not every time but often enough to where it becomes annoying. One last thing. The overall design is beautiful but since it is a cylindrical shape it's not very practical if you are positioning it against a wall. It sticks out like a sore thumb.

Purchased two hoping to see a difference in the air quality In our bedroom and house. Pros. *Whisper quiet most of the time on auto. *Easy to clean * Ships fast Cons. *Price *Not sure it's actually cleaning the air my cheap filter seems to catch more dust and pollen. *The smelly cartridge to make the air smell clean is out in days even on the lowest setting. This is a short term review will update after a season of use.

[This review was collected as part of a promotion.] This new Shark Never Change Air Purifier MAX is designed to do such a great job on cleaning the air in my home and keeping it smelling fresh. I mean it was easy to setup the high-performance HEPA filter that looks very durable and won't need to be replaced until 5 years. It was also easy to turn-on the power of the purifier and let it do its thing, and I loved that it comes with a wonderful odor neutralizer cartridge that was easy to insert onto the top of the air purifier. I am so satisfied and happy with my new Shark Never Change Air Purifier Max!

We bought this over a month ago. At first it was staying at 100% with a blue ring. We have 2 dogs, 2 cats and 4 people living in the house so it was surprising that the air was "clean". One we cooked and did some vacuuming it kicked in and dropped to 50% and started cleaning the air. We love that it shows current air quality and that it has the Eco feature, we leave it on all the time, 24 hours a day.