The Levoit Core 300S is a compact and affordable smart air purifier that offers a good balance of style and substance. Despite its mid-range price, it has a wide range of smart features, including an intuitive app and compatibility with voice commands via smart speakers. Its three-step filtration system filters out 99.97% of PM2.5 particles, making it great at capturing dust, hair, lint, fibers, fur, and smoke particles, as well as tackling odors, fumes, and VOCs (volatile organic compounds). However, its performance varies depending on room size, and there are some delays in fan and app response times. In this article, we will provide a comprehensive analysis of the Levoit Core 300S’s performance and Features, based on various reviews and user experiences.

Performance and Features

Filtration System

The Levoit Core 300S Features a three-step filtration system, which includes a pre-filter, a True HEPA filter, and an activated carbon filter. This system effectively filters out 99.97% of PM2.5 particles, capturing fine dust, pollen, pet hair, and other airborne pollutants. The H13 True HEPA filter ensures high efficiency in capturing particles as small as 0.3 microns. For those concerned about maintaining their air purifier, it’s essential to know how to clean your air purifier, which can extend the life of your filters and improve the overall air quality in your home.

Room Coverage and CADR

The Levoit Core 300S is designed for rooms up to 219 sq. ft. (20 m²) and has a clean air delivery rate (CADR) of 240 cubic meters per hour (141 CFM). This makes it suitable for small to medium-sized rooms, such as bedrooms, home offices, and living rooms. When considering an air purifier, it’s crucial to compare options that are designed for your specific room size to ensure optimal performance. For instance, the Winix Air Purifier C545 is another model with a different coverage area and CADR that may suit different needs.

Smart Features and App

One of the standout Features of the Levoit 300S is its smart capabilities. It can be controlled using the VeSync app, which is user-friendly and presents information in a clear, intuitive way. The app allows you to create schedules, set timers, and monitor the air quality in real-time. The Core 300S is also compatible with Amazon Alexa and Google Assistant, enabling voice control for added convenience. For those interested in exploring other smart air purifiers, the Winix C545 Air Purifier also offers advanced Features worth considering.

Noise Levels and Energy Consumption

The Levoit Core 300S operates at a noise level between 24 and 50 dB, depending on the fan speed. In sleep mode, it is very quiet at only 24 dB, making it suitable for use in bedrooms. The power consumption of the Core 300S is 26 W, which is relatively low compared to other air purifiers. It’s important to consider both noise levels and energy consumption when selecting an air purifier, as these factors can affect both comfort and utility costs. For those looking to understand the benefits of air purifiers, including noise reduction and energy efficiency, the air purifier benefits guide provides valuable insights.

Pros and Cons


  • Performance and smart Features outweigh its price
  • Protects against 99.97% of indoor pollution
  • Incredibly useful and intuitive app
  • Quiet operation and low energy consumption


  • Performance varies depending on room size
  • Delays in fan and app response time
  • No dedicated fan or dehumidifier Features
  • No replacement filters included

Comparison with Other Models

When comparing the Levoit Core 300S with other popular models, it’s important to consider various factors such as design, filtration system, room coverage, noise level, power consumption, and additional Features. Let’s take a closer look at how the Levoit Core 300S stacks up against the Levoit Core 300.

FeatureLevoit Core 300SLevoit Core 300
DesignCompact, lightweight, and stylish with a cylindrical shape and real 360-degree air inlet.Similar compact and stylish design, slightly heavier.
Filtration SystemThree-stage filtration system including a pre-filter, True HEPA filter, and activated carbon filter. Offers customizable filter choices.Same three-stage filtration system, but without customizable filter choices.
Room CoverageDesigned for smaller rooms of 215 square feet or less.Similar room coverage, designed for smaller rooms of 215 square feet or less.
Noise LevelProduces less noise overall, quieter at lower speeds. Uses QuietKEAP technology for quieter operation.Produces less noise overall, but may be louder at higher speeds.
Power ConsumptionEnergy-efficient with a power consumption of just 26 watts.Similar energy efficiency, but slightly larger in size.
Additional FeaturesIncludes VeSync app support for smart control and a laser dust sensor for quicker air quality readings.Does not include smart app support or a laser dust sensor.

From the comparison, it’s clear that both models offer excellent air filtration and purification, making them ideal for people with allergies or asthma. The main difference lies in the additional Features. The Levoit Core 300S includes VeSync app support, making it a more “smart” air purifier, and also has a laser dust sensor for quicker air quality readings. On the other hand, the Levoit Core 300 does not have these Features but is still a great choice for those seeking a reliable and efficient air purifier.

Maintenance and Filter Replacement

One of the key aspects to consider when owning an air purifier like the Levoit Core 300S is the maintenance and filter replacement. Regular maintenance ensures the device operates at its best, providing clean and healthy air consistently.

Cleaning the Levoit Core 300S

Cleaning the Levoit Core 300S is straightforward. The exterior can be wiped down with a soft, dry cloth. The air inlet and outlet can be cleaned using a small, soft brush. It’s important not to use any corrosive cleaners as they can damage the device. Also, the device should be unplugged before cleaning.

Filter Replacement

The Levoit Core 300S uses a three-stage filtration system, which includes a pre-filter, a True HEPA filter, and an activated carbon filter. Over time, these filters will need to be replaced to ensure the air purifier continues to function effectively. The device has a built-in filter replacement indicator that will let you know when it’s time to replace the filters. Typically, the filters should be replaced every 6-8 months, depending on usage and air quality. Replacement filters can be purchased directly from Levoit or authorized retailers.

It’s worth noting that the Levoit Core 300S offers customizable filter choices, allowing you to choose a filter that best suits your needs. For instance, if you have pets, you might opt for the Pet Allergy Filter, or if you live in a city with high pollution, the Toxin Absorber Filter might be a better choice.

Maintaining your air purifier and replacing the filters as needed is crucial to ensure the device continues to provide clean and healthy air in your home. For more information on maintaining and cleaning air purifiers, you can refer to this comprehensive guide on how to clean your air purifier.


The Levoit Core 300S is a solid choice for those looking for an affordable, compact, and smart air purifier. Its three-step filtration system, smart Features, and compatibility with voice commands make it a convenient and efficient option for improving indoor air quality. However, its performance may vary depending on room size, and there are some minor drawbacks in terms of response times and lack of additional Features. Overall, the Levoit Core 300S offers great value for its price and is a worthy investment for those seeking better control over their home’s air quality. For those interested in a broader range of options, exploring the best air purifiers can provide additional choices to meet various needs and preferences.

Is the Levoit Core 300S ozone free?

Yes, the Levoit Core 300S is 100% ozone free. It does not use UV or ions which produce trace amounts of measurable ozone, a harmful air pollutant.

How often should I replace the filters in my Levoit Core 300S?

The filters should be replaced every 6-8 months, depending on usage and air quality. The device has a built-in filter replacement indicator that will let you know when it’s time to replace the filters.

What is the difference between the Levoit Core 300 and the Levoit Core 300S?

The main difference between the two models is that the Levoit Core 300S includes smart Features such as VeSync app support and a laser dust sensor for quicker air quality readings. The Levoit Core 300 does not have these Features.

Can I clean the filters in my Levoit Core 300S?

The filters in the Levoit Core 300S are not designed to be cleaned. Attempting to clean the filters can damage the delicate HEPA and activated carbon layers and reduce the effectiveness of the air purifier.

Is the Levoit Core 300S suitable for large rooms?

The Levoit Core 300S is designed for rooms up to 219 sq. ft. (20 m²), making it suitable for small to medium-sized rooms. For larger rooms, a different model with a higher CADR and larger coverage area may be more suitable.


Hey there, I'm Kevin, editor of Xievo. I'm passionate about air purifiers and providing accurate information to help readers make informed decisions. In my free time, I love hiking and experimenting with air purifiers in my own home. Thanks for visiting Xievo!

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