Levoit 300S vs 400S – Check Which One Is Best & Why?

Levoit Core 400S & Levoit Core 300S share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the Levoit Core 400S rather than the Levoit Core 300S.

Table Of Contents hide

1 Why Do I Recommend The Levoit Core 400S?

2 Side By Side Comparison

3 What Common Both Can Do?

4 Common Features

Why Do I Recommend The Levoit Core 400S?

The Levoit Core 400S features a higher 260 CFM Clean Air Delivery Rate to purify larger rooms up to 403 sq ft more quickly, while the Levoit Core 300S delivers about 135 CFM for smaller rooms up to 219 sq ft.
Levoit Core 400S comes with a larger 360° filter cartridge to increase air intake capacity and reduce filtration strain during high-speed operation, whereas the Levoit Core 300S uses a smaller filter.
It includes a more advanced laser PM2.5 sensor for faster and more precise air quality detection, while the Levoit Core 300S uses a standard sensor with less sensitivity in real-time monitoring.
The Levoit Core 400S has a 38 W stronger motor to maintain consistent air pressure and higher airflow at maximum speed, whereas the Levoit Core 300S runs on a 26 W motor.
Levoit Core 400S features a wider top air outlet and larger fan assembly for smoother airflow distribution across the room, while the Levoit Core 300S has a smaller outlet design.
It supports faster auto mode response to changing PM2.5 levels for maintaining stable air quality without manual adjustment, whereas the Levoit Core 300S reacts more gradually in smaller rooms.
The Levoit Core 400S includes a larger LED display with clearer PM2.5 readouts for easy visibility across the room, while the Levoit Core 300S features a smaller display.
Levoit Core 400S is built with a sturdier and heavier housing to enhance stability and minimize vibration noise during high-speed operation, whereas the Levoit Core 300S uses a lighter body that may shift slightly.

Maybe the Levoit Core 300S can make you comfortable because it’s a little bit cheaper than the Levoit Core 400S. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

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Side By Side Comparison

Feature	Levoit Core 400S	Levoit Core 300S
Recommended room size	403 sq ft	219 sq ft
CADR (approx.)	~260 CFM	~135–141 CFM
Motor power (max)	38 W	26 W
Noise level (max)	~52–60 dB	~48–65 dB
Dimensions (H × D)	~20.5″ × ~10.8″	~14.2″ × ~8.7″
Weight	~10 lb	~6 lb
Number of fan speeds	5	4
Auto mode	Yes	No
Smart app & voice control support	Yes	No
Filter size	Larger cylinder	Smaller cylinder
Power draw at low speed	Higher absolute value	Lower absolute value
Top control panel size	Larger	More compact
Smart home integration	Full	Basic manually controlled
Air intake surface area	Larger	Smaller
Price	Check Levoit 400S Price	Check Levoit 300S Price

What Common Both Can Do?

True HEPA Filtration: Both purifiers use a True HEPA filter capable of capturing 99.97% of airborne particles as small as 0.3 microns, ensuring removal of dust, pollen, and allergens from indoor air.
Activated Carbon Layer: Each model includes an activated carbon layer that traps odors, smoke, and VOCs, helping maintain a fresher indoor environment.
Pre-Filter Stage: Both devices feature a washable pre-filter that captures larger particles such as pet hair and lint, prolonging the life of the HEPA filter.
3-Stage Filtration System: Each purifier employs a three-stage system—pre-filter, HEPA, and carbon—to comprehensively clean air in multiple stages.
360° Air Intake Design: Both units pull air in from all sides, ensuring even air purification across the entire room without needing specific placement direction.
Sleep Mode: Each purifier has a sleep mode that reduces fan noise and dims display lights for undisturbed nighttime operation.
Timer Function: Both models include an adjustable timer, allowing users to set automatic shut-off after a chosen duration for convenience and energy savings.
Filter Replacement Indicator: Both feature a built-in reminder that notifies users when it’s time to replace the filter, ensuring consistent performance.
Touch Control Panel: Each purifier uses a responsive touch interface for easy adjustment of settings like speed, timer, and mode.
Smart Connectivity (VeSync App): Both connect to the VeSync mobile app, enabling users to control settings remotely, monitor air quality, and receive filter alerts.
Voice Assistant Support (Alexa/Google): Each supports hands-free operation via Amazon Alexa or Google Assistant, offering greater convenience for smart home users.
Display Off Option: Both allow users to turn off the display lights during operation, making them suitable for use in dark rooms.
PM2.5 Sensor Integration: Each model includes a laser-based sensor that detects fine particulate levels and adjusts fan speed in auto mode.
Real-Time Air Quality Display: Both purifiers show air quality in real time through a digital display or LED ring, making it easy to track performance.
Auto Mode: Each can automatically adjust fan speed based on detected air quality levels, maintaining clean air efficiently without manual input.
Child Lock Function: Both include a child lock to prevent accidental setting changes, making them safe for households with children.
Energy Star Certified: Each model meets energy efficiency standards, consuming minimal power during operation.
CARB Certified: Both are certified by the California Air Resources Board, ensuring compliance with ozone safety standards.
Ozone-Free: Each operates without producing ozone, making them safe for continuous use even in closed indoor spaces.

Check Levoit 400S Best Price

Check Levoit 300S Best Price

Common Features

Feature	Levoit Core 400S	Levoit Core 300S
True HEPA Filtration	Yes	Yes
Activated Carbon Layer	Yes	Yes
Pre-Filter Stage	Yes	Yes
3-Stage Filtration System	Yes	Yes
360° Air Intake Design	Yes	Yes
Sleep Mode	Yes	Yes
Timer Function	Yes	Yes
Filter Replacement Indicator	Yes	Yes
Touch Control Panel	Yes	Yes
Smart Connectivity (VeSync App)	Yes	Yes
Voice Assistant Support (Alexa/Google)	Yes	Yes
Display Off Option	Yes	Yes
PM2.5 Sensor Integration	Yes	Yes
Real-Time Air Quality Display	Yes	Yes
Auto Mode	Yes	Yes
Child Lock Function	Yes	Yes
Energy Star Certified	Yes	Yes
CARB Certified	Yes	Yes
Ozone-Free	Yes	Yes
Price	Check Levoit 400S Price	Check Levoit 300S Price

FAQ

Do both the Levoit Core 400S and Core 300S use True HEPA filters?
Yes, both models use True HEPA filters that capture 99.97% of airborne particles as small as 0.3 microns, effectively removing dust, pollen, and allergens from the air.

Can both purifiers connect to the VeSync app?
Yes, both the Levoit Core 400S and Core 300S are Wi-Fi enabled and compatible with the VeSync app, allowing users to control settings, monitor air quality, and schedule operations remotely.

Are the Levoit Core 400S and 300S compatible with Alexa and Google Assistant?
Yes, both models support voice commands through Alexa and Google Assistant, enabling hands-free operation for adjusting modes or checking air quality.

Do the Levoit Core 400S and 300S include an auto mode?
Yes, both purifiers include an auto mode that automatically adjusts fan speed based on real-time air quality readings from their built-in sensors.

Is there a sleep mode on both models?
Yes, both air purifiers feature a sleep mode that lowers fan noise and dims the display lights for quiet, undisturbed operation during sleep.

Are the Levoit Core 400S and 300S ozone-free?
Yes, both are completely ozone-free, using mechanical filtration rather than ionizers or UV-C light, making them safe for continuous use indoors.

Do both models have a filter replacement indicator?
Yes, each purifier has a filter replacement indicator that alerts users when it’s time to replace the filter to maintain optimal performance.

Are the filters interchangeable between the 400S and 300S?
No, each purifier uses a different size and type of filter—Core 400S uses the Core 400S-RF filter, while Core 300S uses the Core 300S-RF filter.

Do both purifiers have a timer function?
Yes, both models include a timer that allows users to set automatic shut-off intervals, which helps conserve energy and extend filter life.

Can both units display real-time air quality?
Yes, each purifier features a PM2.5 sensor that measures particulate matter and provides real-time air quality readings via the app or control panel.

Do the Levoit Core 400S and 300S include a child lock function?
Yes, both include a child lock feature to prevent accidental setting changes, making them suitable for families with young children.

Are both purifiers Energy Star certified?
Yes, both models meet Energy Star efficiency standards, ensuring they consume minimal power during daily use.

Can both units be used in bedrooms or small spaces?
Yes, both can be used in bedrooms; however, the Core 400S is better suited for larger spaces up to 403 square feet, while the Core 300S is ideal for smaller rooms up to around 219 square feet.

Do the Levoit Core 400S and 300S require regular maintenance?
Yes, both require regular filter replacements every 6–12 months depending on usage, and periodic cleaning of the pre-filter to maintain peak airflow.

Are both models certified for safety and air quality compliance?
Yes, both the Levoit Core 400S and Core 300S are CARB certified and comply with UL and FCC standards, ensuring they meet strict air quality and electrical safety requirements.