1-Year Update: I've had 2 Everest Air units in my 1-bedroom apartment for a little over a year now and thought I'd come back to update. All in all, I can say this is still a 5-star product and still one of the best on the market. Everything I said originally still is true to this day. No issues whatsoever to report with either unit. The one and only negative thing I can possibly find is the cost of the replacement filters, which are $99 each, and never seem to go on sale. I have to change both filters pretty much twice a year. The first change I did I tried an off-brand that was less than 1/2 the price, but they did not fit the unit quite right and left a gap, and noticeably did not perform as well. When I just changed them a few days ago I bit the bullet and spent the $200 on the real filters and it was nice to have them fit snugly into the machines. --- Original Review: Love my Levoit EverestAir! I researched air purifiers for over a month, trying to determine which had the best performance, quality filter, and lots of modern features. I watched hours of video reviews, sorted through articles, and evaluated each, including Levoit, of course, Dyson, Mila, Molekule, Coway, and Blueair, just to name the most popular that I looked at. When it came down to it, the Levoit EverestAir has the best of what I was looking for – so much so that I just ordered a second one to put in my bedroom! FILTRATION: Like another reviewer mentioned, starting at the filter and then working your way back is best, and the filter on this thing is a beast! It is massive and has a large amount of carbon pellets that you can actually see. Many other brands use a tiny sheet of carbon that does almost nothing to capture VOCs or odors, but Levoit packed a ton of carbon pellets into this filter. Plus, the laser air quality monitoring is the best you can get. It reacts almost immediately, maybe a 5-10 second delay, to any change in the air quality. I notice that it kicks up right when I expect it to. DESIGN: It is definitely not a "small" machine, but it also isn't the largest. It is sleek and looks nice in my living room, considering it is powerful enough to clean my entire 900 sq.ft. apartment. The display gives you all of the information you need without being an obnoxiously bright touchscreen monitor. I really like that you can control the display or enable the "light detection" mode which would be great for a bedroom as it automatically lowers the fan speed and turns off the display when it gets dark. APP: The app is great, I have had a Levoit Core 200 for several years and it is still running perfectly to this day, which also uses the same app as the EverestAir. However, the main difference is the EverestAir app is PACKED with features. You can view everything you can on the machine itself, like air quality %, PM1.0, 2.5, and 10, change the fan speed or place it in auto mode, view the filter life, and turn the display on or off. PRICE: Considering some of the competitors like Dyson and Molekule can reach $800 after tax, the EverestAir is a great value! Of course the sticker shock can be a bit jarring, but overall it is 100% worth it. DOES IT HELP PURIFY: It sure does! I suffer from severe seasonal allergies in both the spring and fall, and when I was home, I did not have to take any allergy medications, eye drops, or nose sprays whatsoever and I have EverestAir to thank for that! I sleep better and my furniture stays cleaner with the particulates being filtered out of the air before they have a chance to settle. My apartment is brand new and there was a bit of construction dust still in the air, in the carpet, and on the walls, and I am confident this is keeping that at bay, too, while the carbon is absorbing any Formaldehyde offgassing from the fresh paint. THE BOTTOM LINE: If you're on the fence about ordering the EverestAir and are looking at any of the brands I mentioned, absolutely buy the EverestAir! You will not regret it. Read more

The unit runs very quiet and if you leave it in auto mode it basically takes care of itself turning itself up and down after determining the quality of air. I put it to the test and actually took some dusty items and spread the dust around the unit it immediately sensed the air quality had changed and raised itself and showed the air quality going from 97 down to 88 and within 15 minutes clean the air up and had it back at 98. So far I'm extremely pleased with this unit and would highly recommend it to anyone who wants to keep their air clean. Read more

I read a lot of reviews before selecting the Levoit Everest Air Purifier. My choice was based on quietest with a high air turnover and it does not disappoint. It is quiet! It removed animal and musty smells. Also it has an app that sent me a notification yesterday while I was on a long walk saying my air quality dropped from 99% to 63% and automatically shifted to Turbo fan speed to clear the air. I immediately called my husband asking “Do we have a fire!” He was at home cooking bacon that had began to smoke and he said the Levoit fan automatically turned to a high speed and was effectively clearing the air. Thank you Levoit! Read more

I got this for my apartment as I have 3 Sphynx cats, and I must say I love it more than any other air filter I've ever owned! I had a germ guardian, but I felt like it wasn't picking up all the dirt and allergens in our home. I love the smart features, and how I can control it even from the other room. The air filter is great at removed even the smallest particles, and it lets me know the outdoor pollen levels and air quality. Love love love it! It is durable, silent, and great for any size home. In sleep mode, you can barely hear it, which improves sleep quality. I can rest assured knowing I will be breathing in better air. I would recommend this to anyone and everyone, you only have to change the filter once every 12-15 months, and the top filter is removable and rinsable in the sink! Read more

This is the best air purifier ever! I’ve had so many, and they’ve been fine, but this is the first one with a high enough CADR and a pelleted carbon filter as part of the regular filter. I need that combination in my master bedroom (aka “the cat prison”) to combat litter dust, pet smells and ammonia. This works amazingly well, and it is quiet. It’s currently running at its top fan speed (3), and the noise is not intrusive at all. I have a round tower air purifier from another manufacturer in a spare bedroom, which has a lower CADR and three speeds plus turbo. Third speed is really loud, and turbo sounds like a plane landing! My roommate is allergic, and she can already tell the difference. I had difficulty choosing between this one and the 600S, especially with the price difference, but ultimately chose the Everestair for its removable pre-filter, the pelleted rather than impregnated carbon filter, and much quieter operation. Totally impressed. Read more