Customer Ratings & Reviews

I can't believe it helped my children sleep well at night. Cleans and purifies air amazingly

This unit is a must, especially here in NY. The pollen gets really bad in the spring and this really clears up the room perfectly!!!!

Very happy with the product. So quiet and looks nice

Really happy with it, i can tell the difference alright this product has made in our apartment, really easy to control, settting it up was a breeze definetly would recommend it.

With all the outdoor pollen and smoke getting into my home i was having had a hard time sleeping at night until we bought this fantastic Levoit PlasmaPro 400S Smart True HEPA Air Purifier at Best Buy! Thank you guys for carrying the best product.

Product works like a dream very quiet works as advertised will buy one more.

If you're looking for an air purifier, then Levoit is the brand for you. The app makes functioning the purifier so easy and you can even connect it to an Alexa device with voice commands. Definitely worth the price and is great for people with allergies!

Owned this unit for two months and so far it’s working well and the filter seems clean still. Looking forward to seeing how it holds up at the 1 year mark.

This is a must in every house...Allergies are gone, pets odors gone, even when we cook this air purifier filtrates all the smells and the air is fresh and no bad odors.

I am in love with this new Levoit PlasmaPro HEPA Smart Air Purifier! It has been a game-changer this pollen season. I use this air purifier in my bedroom with a connected bathroom and it has drastically changed the way the air feels, giving it a crisp and clean sensation. There are so many things I love about this air purifier, like how quiet it is when on auto or night-time mode, you can barely hear it. The air purifier boasts a 3-stage H13 True HEPA filter that cleans like a dream, filtering 99.97% of airborne particles 0.3 microns and stopping odor in its tracks. True HEPA filters can’t be beaten when it comes to air purification and this filter is great for pollen, animals, bacteria, mold, viruses, and the smell from the occasional kitchen mishap resulting in blaring smoke alarms, this HEPA filter will neutralize all of them. The ionizer mode works great, this helps clean and remove even more contaminants than just the filter alone. The PlasmaPro ionizer technology is what gives the air that sense of clean, you can feel. The screen on the machine is super helpful, easy to use, easy to read, and easy to manipulate. The screen shows a colored ring that shows real-time air quality conditions and numbers in the center representing the particles in the air scanned by a laser dust sensor. The app for this air purifier can be downloaded on iOS or Android and it works as a remote for the purifier as well as enable more settings. The app also allows you to set up real-time notifications about your air quality and filter life. I like the app, it seems to work well, but I do wish the air purifier came with a separate remote. Who needs a remote when you can enable Alexa to connect to the air purifier and control it with your voice! Connecting this machine to Alexa was quick and easy, I renamed my purifier “400” as I found the default name was too long and tricky for both me and Alexa. Another thing that I found pleasing about this air purifier is how it changes fan speeds. When changing fan speeds, the machine smoothly winds up faster as if slowly pushing the accelerator in a high-end luxury automotive instead of jolting to a higher speed such as downshifting in a sports car. It just sounds well-engineered and expensive; I can’t get enough of that sound. Other than working flawlessly and physically changing the air that we breathe, there is one more thing I love about this air purifier and it’s the modern sleek look. This machine looks so good! It is the perfect size and shape to put anywhere, and it looks great anywhere. Pros: - Simple easy setup - Easy to read and use display - WiFi-enabled, great app, and Alexa/Google capable - Ability to change the air in 403sqft space 5 times per hour - Ability to change the air in 1007sqft space 2 times per hour - True HEPA filter - PlasmaPro ionizer technology - Noise levels as low as 24dB - Sleek modern look Cons: - No physical remote (but the app is great!)

I love that my cell phone notifies me when it's almost time to replace the filter.

To start, it’s Levoit and they make great products. I own several products from this brand and I’m yet to be disappointed with any purchases over the past several years. I don’t plan to use the smart phone connectivity feature but, perhaps I will find a use for this feature in the future..

This is a great purifier. I would highly recommend purchasing a air purifier with auto on/off such as this one.

Auto mode is very effective. Less noise. Works with Google voice commands. Looks Classy.

Great purifier !!! Got it working with my google home and on my WiFi network. So far so good.Using it for my bedroom

This cylindrical purifier features a clean design, great performance, and smart features to monitor and improve your air quality in your home. With the capability of refreshing the air in a 400 sqft space in as little as 12 minutes, the Levoit 400S PlasmaPro offers impressive performance in a mid sized unit that is 20 inches tall and roughly 10.5 inches in diameter. The HEPA filtration mechanically filters down to 0.3 microns while Levoit’s HEPASmart technology claims to capture 99.9% of bacteria and viruses. In addition, this model features their PlasmaPro technology which deodorizes the air with negative and positive ions. The PlasmaPro also features an internal laser based sensor that monitors and adjusts the fan speed based on contaminants in real-time. We actually over cooked some bacon and the device was quick to detect and clean the air. Automatically ramping up the fan to high, the smell was gone within a few minutes and the fan had adjusted back down to a tolerable level. As with any “smart” device, there is an app that can be used in conjunction with the device that provides current and historical air quality data as well as controlling the device from your phone. Though I like that I can also lock the controls from the app (parents of toddlers rejoice!), the app itself (VeSync) is distracting with loads of unrelated content such as a store and recipes section. I would have preferred a dedicated app instead of this “smart home” approach. With that said, the device would be rated higher if they offer a more focused app in the future, fortunately the app is optional and the device works great with out it. If you have the space for it, the Levoit PlasmaPro performs well and is hard to beat for the price.

It is working good for the room that it is in I would recommend

The Levoit 400S HEPA Smart Air Purifier, just out-of-the-box is a sleek, modern designed machine that looks great in my home. Setup is super-simple. First, carefully turn unit upside-down, then open the air cleaner's housing to remove the HEPA filter. Remove the plastic bag encasing the filter, then place filter back into the housing and close the cover. Carefully, place the unit upright and plug the power cord into an outlet. Turn unit's power on. The Levoit uses the VeSync app, which is non-proprietary and is used to manage various brands of home and energy items remotely. You can download the VeSync app from your phone's App Store. Follow the LeVoit Quick Start directions to enable the unit's WiFi, then to connect the app to your Air Cleaners WiFi. (You must have a home Internet connection.) Once completed, you can control your new Air Cleaner from anywhere. The Levoit unit has a sensor that checks your air quality and sends that info to the unit's display & to the VeSync app, so that you can check your room's air quality remotely. You can also check the percentage of life left on your u it's HEPA filter. On the whole, I find the Levoit 400S to be an effective, quiet-running, nice-looking Air Cleaner that fits well in the modern Smart Home.

As one of the leaders and innovators in the air purification industry, Levoit continues to improve on their line of air purification products and gain more traction with their brand name by introducing the 400S smart HEPA air filter. This HEPA air filter is perfect for most rooms around 400 square feet and is discrete enough to not be a distraction to your existing ambiance. Upon unpacking the 400S, the air filter is sleek and modern looking with a touch panel lit interface on top with a LED screen that displays the air quality. It is very simple to set up with just the power cord and optionally downloading the VeSync smart phone app. Using the app, you can log in or create a VeSync account, connect the air filter to your wifi and link it to voice control assistants such as Amazon Alexa or Google Assistant. Keep in mind, all these options are not necessary to run the fan alone but is a welcome feature in this technological age. The air filter has 5 speeds, all of which are relatively quiet. I typically don’t notice the fan is on while on speeds 1-3 with the other background noise in the kitchen where we have the filter placed. There is a sleep mode that is convenient if you are placing it your bedroom that will turn off the display lights and uses the quietest fan setting. The auto mode is what I keep the fan on as it will adjust to the appropriate fan speed depending on what the sensors are telling it. There is a timer setting if you prefer not to have the fan stay on all the time. The fan uses a 3-stage H13 True HEPA filtration system consisting of a high-efficiency carbon filter, pre-filter and H13 True HEPA filter. All of this combines to capture nearly 100% of airborne particles including bacteria and viruses, filter out smoke, odors, etc. The filters are easy to remove/replace and the app tells you the filter life along with monitoring history, local area environmental concerns such as fires as well as some other useful information. Levoit’s AirSight Plus Technology uses a laser dust sensor to sense the air it’s filtering and provide real-time air quality updates using their smart phone application. One of the more advanced features of this HEPA filter is what Levoit calls their PlasmaPro Technology which claims to actually break down the molecular structure of air pollutants such as odor, gases, aerosols, etc.. Overall, this is a well made HEPA air filter for home or office use using some of the latest technology to filter and destroy air pollutants in an attempt to keep everyone more safe.

Levoit is easily the best air purifier I have ever used in my home. With it’s stylish design, easy to read display, detailed app, and ease of use, you simply cannot go wrong. I have never owned an air purifier that could be programmed to turn on and off at specific times on a schedule and I don’t think I could ever go back. Once I unboxed and set up the unit, I downloaded the free (VeSync) app and set up my start/stop times, room size, and Alexa integration. Each process was a breeze and the app was clear and easy to navigate. I have mine set up (in my office) to turn on at 6:00pm and off at 11:00pm each day. I have also selected the office square footage so the fan will run at its optimal speed. So far, it has performed exactly as expected and has kept my office fresh and clean. You can view the PM2.5 (particulate matter) reading either on top of the display, or in the app quickly, letting you know how healthy your air quality is at any given moment. From there, you can easily adjust the unit up or down if needed. In my case, I have only had to set up my schedule and room size and it simply takes care of the rest, keeping my number low and my air fresh and clean. I have noticed that when I open the window, the PM2.5 meter will definitely rise, as airborne particles from outside make their way into the room, therefore comforting me in the fact that the unit is actually doing its job. This unit has a plasma function that will detect and eliminate odor as well, so if you have pets and they come into the room, the unit will detect it and clean accordingly. There is even a display lock button included (on the top panel) so the kiddos can’t change your settings! Filter installation is the easiest of any air purifier I have ever used. You simply turn the unit over, twist the bottom to unlock, drop the filter in, twist the bottom to lock, turn over and turn on. I recommend doing this on carpet so you don’t scratch the top display. The filter health is also easy to check in the app so you know when it is time to order a new one. Lastly, Alexa voice commands work great. If you want to talk to your air purifier and give it commands, you can do so. Smart homes have gotten more smart over the last few years. Now we can talk to our appliances too. Pretty soon, I expect to be able to tell my kitchen to make dinner :) All in all, I can’t say enough good things about the Levoit Air Purifier. It is great looking, not too big, not too noisy, easy to program, easy to change filters, etc… If you are in the market for an air purifier, which IMHO everyone should be, I highly recommend the Levoit 400S.