Levoit PlasmaPro 400S-P Smart Air Purifier for Rooms up to 1755 sq ft Black
$259.99
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The Levoit Plasmapro 400s Smart True HEPA Air Purifier is highly praised for its effectiveness in improving air quality, reducing odors, and helping with allergies. The smart features, including an app that provides real-time air quality updates, are appreciated by users. The device is also noted for its quiet operation and sleek design.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.8 out of 5 stars with 386 reviews
quality: 4.56 out of 5
value: 4.22 out of 5
83% would recommend
30 recommendations
5 out of 5 stars
28 February, 2026Verified purchase
(no review title)
Silent, easy to program, attractive and effective. Just bought a second one based on first purchase.
5 out of 5 stars
Thumbs up graphic, would recommend
22 November, 2025Verified purchase
(no review title)
App and display are perfect for showing quality of air and how much the purifier is working. Extremely quiet and auto function is perfect.
5 out of 5 stars
Thumbs up graphic, would recommend
22 August, 2025Verified purchase
Mrs
Clears the air so good, cleared up my stuffy nose, ty!
5 out of 5 stars
Thumbs up graphic, would recommend
12 May, 2025Verified purchase
Air purifier
So far so good just set it up
1 out of 5 stars
Thumbs down graphic, would not recommend
1 February, 2025Verified purchase
Does not remove cigarette smoke!
I have a small condo, upstairs unit and the downstairs neighbor cigarette smoke is coming in our condo. I have 6 air purifiers all on the highest settings and this unit DOES NOT REMOVE THE CIGARETTE SMOKE! It is extremely loud on the highest setting. This unit is new. I do not recommend buying this product.
1 reply from Etekcity-Cosori-Levoit team - 1 year ago
Our Levoit support team wants to hear more details about your experience to see how we can help. If you haven't already, please email us at support@levoit.com, and mention this review. We are always here to help!
5 out of 5 stars
Thumbs up graphic, would recommend
31 August, 2024Verified purchase
Great air purifier
Impressed how quiet it is!
5 out of 5 stars
Thumbs up graphic, would recommend
22 August, 2024Verified purchase
Get it, it's worth it
We use ours daily and especially after we cook in our apartment. I love this. Our cat struggles with allergies and it has improved the itchiness he has.
4 out of 5 stars
Thumbs up graphic, would recommend
29 June, 2024
Levoit PlasmaPro 400s
The plasma pro technology Neutralizes and breaks down particulate matter, odorous gases, and other aerosols not visible by the naked eye!
5 out of 5 stars
Thumbs up graphic, would recommend
2 May, 2024Verified purchase
Air purifier
Very quiet and easy to set up
5 out of 5 stars
Thumbs up graphic, would recommend
6 April, 2024Verified purchase
This is the one
I love the ability to control thru the app!! And the Lock Screen and turn screen off feature (I have kids lbvs) ; it truly helps and even if air quality is good we use it as a fan def cools the room. Oh and I priced match with Amazon!
5 out of 5 stars
Thumbs up graphic, would recommend
27 February, 2024
Love
It truly hurt to spend this amount on this item but it is most definitely worth every penny. My filter needs to be replaced and I have asthma/bad allergies. I’ve noticed a huge difference the last few nights it’s been off in my room.
4 out of 5 stars
Thumbs up graphic, would recommend
29 January, 2024Verified purchase
READ THE START UP INSTRUCTIONS
4 stars because although we love everything about this air purifier, we feel the packaging can be considered a bit deceptive if you don’t read all of the start up instructions. The filter is already in the air purifier when you purchase but it’s covered in plastic. So the purchaser has to open up the box, open up the air purifier and remove the plastic from the filter before reinstalling and operating it. If you’re good about reading instruction then you are safe but some people are not good about reading the instructions.
3 out of 5 stars
Thumbs down graphic, would not recommend
29 January, 2024Verified purchase
Not good for cigarette smoke
It doesn’t help in a connecting condo where the others smoke. My condo still smells of smoke. Was hoping this would help in a small living area…..
1 reply from Etekcity-Cosori-Levoit team - 2 years ago
We appreciate you sharing your experience. Our units feature a 3-stage filtration system including a high-efficiency carbon filter to help remove odor particles. For best results, we recommend minimizing the source of the smell as best as possible first as the air must also pass through the filters a few times. To rapidly purify the room, we recommend running the unit at a higher speed with the doors and windows closed. If you have any further questions or concerns, please reach out to us directly. Our email address is support@levoit.com; our hours of operation are from 9:00 AM to 5:00 PM PST Monday thru Friday.
5 out of 5 stars
Thumbs up graphic, would recommend
5 October, 2023Verified purchase
Best HEPA purifier
We have two of these and they work great. I really like that you can see the level of particles on the top of the filter. Replacement filters are 50 dollars are usually have to be replaced about every 3-4 months. Got this during the Canadian fires and was surprised how high the particulates were upon getting it started. Feel much better about the baby being upstairs with clean air.
4 out of 5 stars
26 August, 2023
originally posted on etekcity.com
Mostly great
Mostly great. It keeps disconnecting from my business internet. It also is not removing odors.
5 out of 5 stars
Thumbs up graphic, would recommend
10 August, 2023
Best purchase ever!
I’ve had this for about 6 months now. I wanted to wait a while before I reviewed it so I could get through my heater and air conditioner going. I mainly got this because I’m in an apartment and my neighbor below me thinks her apartment is infested with all that is evil so one day there is smudging and the next is garlic sprays and the smell is just too much. So this has pretty much eliminated that problem. The garlic is still lingering sometimes but I can deal. My family also all has allergies and this year they have been horrible so this purifier has saved us when we are home. We can sleep, taste our food, see clearly. It’s pretty nice. I also noticed when it started to warm up that I was starting to see fruit flies in the filter. I vacuum it regularly. I wasn’t expecting it to catch any bugs. Sure enough, it sucks those little fellas right in too. This really was a solid purchase.
5 out of 5 stars
31 July, 2023
originally posted on etekcity.com
Excellent Air Purifier
Easy set up and works great! We now have three set up in different rooms at our house. We also purchased two for my mother’s house.
1 out of 5 stars
30 July, 2023
originally posted on etekcity.com
Terrible, foul smell after a short use
The purifier continues to give off a foul, sour smell after a short time of use. I just purchased a new filter to try and resolve this issue at the end of May and by early July it was already beginning to smell this way again. Now in late July we can’t even use it anymore because it makes the room smell terrible. This seems to be a consistent problem that customers are having with Levoit’s products and they are not fixing the issues. Do not purchase this purifier. If you have already purchased the purifier don’t waste any more money on new filters and demand your money back.
1 reply from Customer Service team - 3 years ago
We appreciate you sharing your feedback. Let's see what we can do to help. Can you try running the unit without your filters to see if the smell persists? We would like to get a little more details to see how we can help. Please reach out to our customer service team directly. You can reach us at support@levoit.com or call us at (888) 726-8520. Our phones are open Monday thru Friday, 9:00 AM to 5:00 PM PST. We will be on the lookout for your message.
5 out of 5 stars
21 July, 2023
originally posted on etekcity.com
Levoit Core 400S Air Purifier
My wife and I are plagued by summer allergies and gave the Levoit Core 400S air purifier a try. The unit was easy to setup. You can use the unit manually or by the VeSync app. The air quality was much improved with the unit installed in our living room. So much so, that we purchased another for our bedroom. The unit is very quiet, especially running on low fan. The digital display shows the settings and the actual current particle count. Being able to setup a cleaning schedule is also a nice plus. With the summer air quality alerts that have been occurring, I'm glad we have these air purifiers to provide clean air to breathe.
5 out of 5 stars
Thumbs up graphic, would recommend
17 July, 2023Verified purchase
Nice
I got this price matched and saved over $100 on this. I did a lot of research and found this to be the best brand on the market. It works great so far and I can tell it’s working, especially with the current wildfire smoke from Canada. I don’t wake up as stuffy. It also kicks on automatically when I’m cooking and helps reduce the smell faster.