This Levoit 400S Air Purifier Review gives an overview of this high performance air purifier, from how easy it is to set up and get started, to how it works to improve indoor air quality. .. In addition, we’ll show you some of the features we like and less enthusiastic about.
The Levoit 400S air purifier makes an impressive claim to completely purify the air in the room in just a few minutes. Use a True HEPA 3-stage filter to capture airborne particles such as smoke, dust, pollen and pet dander. Traps and removes some, but not all, bacteria and viruses. Finally, the activated carbon filter absorbs volatile organic compounds (VOC), Aerosols, household fumes, odors and other gases emitted from various sources.
Available from $ 219.99
Smart control with VeSync app
Compatible with Alexa and Google Home
Real-time air quality indicator ring
True HEPA filter with 3-step filtration
Covers rooms up to 400 sq ft
Equipped with a sleep mode for a light sleeper
Check the filter indicator
1 year limited warranty
If you use the QR code included in the manual, VeSync app Control the purifier and monitor air quality data. Compatible voice services such as Alexa and Google Assistant allow you to turn the purifier on and off and change settings without touching the machine.
The app itself is easy to navigate and use. The schedule feature allows users to create daily and weekly schedules to power on the appliance, allowing them to set their work to begin just before they return home from work. You can also set a timer, check the life of the filter, and buy a new filter within the app.
The app is configured for multiple purifiers, so you can name each device and control it through the same app.
The app also features a graph that graphs the level of 2.5 micron particles throughout the day, allowing users to see peaks and valleys of air quality over a 24-hour period. In addition, the bar chart shows daily historical air quality data.
Unfortunately, the VeSync app wasn’t always reliable for all of its great features. During the testing process, I had to uninstall and reinstall the app twice when the app crashed.
Levoit 400S Air Purifier Review: How big is it?
- Height: 20.5 (inch)
- Diameter: 10.8 (inch)
- Weight: 11 (lb)
The Levoit 400S is a stylish, smooth white cylinder with a futuristic-looking circular black vent at the top. With two small indented handles on each side, the appliance can be easily lifted and installed.
Levoit 400S Air Purifier Review: How Easy Is It To Use?
The Levoit 400S Air Purifier is easy to set up and ready to use out of the box. Simply loosen the bottom of the refiner, remove the wrap from the True HEPA 3 stage filter, replace it, and then retighten the bottom of the refiner.
The controls are also quick and easy to use. The touch-sensitive control panel in the center of the vented “wheel” has the following buttons:
- Fan rotation speed
- auto mode
- Display off
- Display lock
- sleep mode
There is also a “Check Filter” indicator that lights up when the filter needs to be replaced. But the best thing about the control panel is that it has a series of color-coded indicator rings that show the current cleanliness of the air, from blue (very good) to red (bad). This measures particles smaller than 2.5 microns at any given time while the appliance is on, which helps you visually see how clean the air is without having to log in to the app.
The Levoit 400S does not provide icons for tracking 0.3 or 10 micron particles, but users can rest assured that they will absorb them, as shown below in home tests.
The automatic mode automatically adjusts the settings to operate efficiently or at the quietest setting of your choice, while the sleep mode dim the display and adjusts the purifier to the quietest setting. You can turn off the refiner at a preset time using the timer or schedule function.
Levoit 400S Air Purifier Review: Performance
The Levoit 400S air purifier is equipped with a HEPA H13 filter. This means that you need to remove at least 99.95% of the particles in the air. In addition to the match smoke test and the incense smoke test, we tested it with a series of tests that evaluated the quality of the surrounding air before and after the use of the purifier. In all trials, the purifier was run at a level below 50 dB (level 3) and again at the highest setting (level 4). Level 4 clocks in at about 52 decibels. This is about the same level as a normal conversation.
During an ambient air quality test in a 30 m3 enclosed room, the purifier was run for 30 minutes at a setting of less than 50 decibels (the third highest fan setting). The Levoit 400S was found to absorb 99.5% of particles smaller than 0.3 micron and 100% of particles smaller than 2.5 microns and less than 10 microns. The same results were obtained when the test was rerun with the refiner at the highest setting (turbo level 4). Therefore, when purifying the quality of the surrounding air, there did not appear to be a significant difference between the two best settings.
We then burned a series of matches to evaluate how well the refiner absorbed 0.3 micron particles. At Level 3 settings, the purifier was found to absorb 99.8% of particles <0.3 microns, 99.6% of particles <2.5 microns, and 100% of particles <10 microns. At Level 4 settings, the purifier was found to absorb 99.9% of particles <0.3 microns, 99.9% of particles <2.5 microns, and 100% of particles <10 microns.
Finally, we burned incense sticks to test the performance of the purifier at low and high settings. At level 3, the purifier was found to absorb 99.9% of particles smaller than 2.5 microns and 100% of particles smaller than 10 microns. At the highest setting, Level 4, the refiner absorbed almost 100% of particles smaller than 2.5 microns and 100% of particles smaller than 10 microns. At the beginning of the incense test, the air particle counter was unable to measure 0.3 micron particles, so the number was high.
Levoit 400S Air Purifier Review: What’s Good about It?
This is an air purifier that is hard to beat, especially at such an affordable price. From intuitive apps with a wide range of features to stylish and sophisticated designs, the Levoit 400S is perfect for midrange purifiers. We especially like the ability to check past and present air quality via the app via handy charts and the ability to schedule purifiers to avoid busy family days.
Levoit 400S Air Purifier Review: What’s Not So Good About It?
The app isn’t as reliable as it should be. If it crashed during the test period, it had to be reinstalled twice. This can quickly become frustrating for users who want to seamlessly connect to purification equipment via their smartphones.
Levoit 400S Air Purifier Review: User Review
The Levoit 400S has an impressive 5 out of 5 stars. Amazon, 85% of reviews have a full 5 star rating. Negative reviews cite issues with the VeSync app and lack of design robustness.
Positive reviews praise the accuracy of the purifier in tracking 2.5 micron particles and the ability to manage and remove unpleasant odors, dust, and pet dermatitis. I especially like the look of the Levoit 400S, but some people find it a bit bigger. They also appreciate how quiet the purifier works in low settings.
Levoit 400S Air Purifier Review: Should I Buy?
Levoit can be the ideal air purifier if you are looking for an effective air purifier that has great performance but does not exceed your budget.
With its quiet, powerful and intuitive app and interface, the Levoit 400S is the best performing air purifier we’ve ever reviewed. However, to get this review to 5 stars, you need to improve the reliability of your app.
Levoit 400S Air Purifier Review: If this product doesn’t suit you
If you don’t like the Levoit 400S Dyson Purifier Cool?? Larger than the Levoit 400S and with a built-in cooling fan, the stylish and sophisticated Dyson Purifier Cool also features a HEPAH13 filter and smart controls.
Impressed with Levoit technology, but if you’re looking for something a little more compact Levoit Personal TrueHEPA Air Purifier It may be the right choice. Its small size and three-stage filtration system make it ideal for small homes and apartments.
Levoit 400s Air Purifier Review
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